structured curriculum lesson plan day: 098 subject: mathematics grade level:
TRANSCRIPT
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STRUCTURED CURRICULUM LESSON PLAN
Day: 098 Subject: Mathematics Grade Level: 4
Correlations (SG,CAS,CFS): 6A5, 6B2
ITBS/TAP:
Demonstrate understanding of measurementconcepts and skills
ISAT:
Demonstrate understanding of measurementconcept and skills
Unit Focus/Foci
Fractions
Instructional Focus/Foci
Fractions of whole numbers
Materials
Six-Group Activity: Fractions and Mixed NumbersMath journals
Counters
Educational Strategies/Instructional Procedures
Warm-up Activity:
How many squares are there? (14)
Solution:
1 3 square: 12 2 squares: 4Single square: 9
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Lesson:
Divide students into pairs. Distribute 30 counters to each pair. Tell students that in this lesson they
will find the fraction of a number. Ask: How many cents there are in2
1of a dime? (5)
Have a student show this at the chalkboard by drawing ten circles and dividing them into 2 equalgroups. Tell students at their desks to show this using the counters. Inform students that another
way to find2
1of a dime would be to divide 10 by 2.
Example:05
10
102
Have them follow these procedures to solve the following problems.
1)4
1of 12 = ________ (3)
2)3
1of 15 = ________ (5)
3)6
1of 24 = ________ (4)
4) Sara had 30 stickers. She gave5
1of these away. How many did she give away? (6) How
many did she keep? (24)5)
10
1of an hour? (6 minutes)
6) Have students use the counters to show4
3of 8. (6)
Ask students if there is another way to find the answer. Have students divide 8 into 4 equal parts.
284 Next, take the 2 parts and multiply by 3. 2 3 = 6. So
4
3of 8 is 6. Write
3
2of 12.
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Tell students they are going to use the division and multiplication method to solve. Ask which
number is the numerator in the fraction3
2. (2) Ask which number is the denominator in the
fraction3
2. (3) Ask which number is going to be divided. (The whole number 12) Pose the
following question: By which number will the 12 be divided? (3 - the denominator in3
2) What is
12 3? (4) Which numbers will now be multiplied? (2 and 4) What is3
2of 12? (8) Have
students check the answer using the counters.
Write10
3of 20. Have students solve using the division or multiplication method and then check
using counters. Write5
3of 100. Ask which of the two methods would be quicker to solve this
problem. (The division and multiplication method)
Ten Statements
Review the ten statements and have students writeyes if they heard it in todays lesson and no ifthey did not. If the answer is no, say: The statement is true, but it was not heard in todays lesson.
1. In the fraction5
3, the numerator is 3. (yes)
2. The first step in the division and multiplication method is to divide the whole number by the
denominator. (yes)
3. To find4
1of 12, 12 can be divided by 4. (yes)
4. The sum is the result of adding two or more numbers. (no)
5.2
1of 10 = 5. (yes)
6. To show3
1of 15 using the counters, the 15 counters would be divided into 3 groups. (yes)
7. A triangle is a polygon with 3 sides. (no)8. The division and multiplication method is quicker than the counter method for finding a
fraction of a large number. (yes)
9. The denominator in103 is 10. (yes)
10. Mode is the number that occurs most often in a set of numbers. (no)
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Free-Choice Lesson
Have students choose a lesson from the Free-Choice Activity sheet (one box per day).
Six-Group Activity
Have a group of six students, two from each ability level, complete an activity on Fractions and
Mixed Numbers as a teacher directed activity.
Math Workshop
Have students work in theMath Workshop after completing their Free-Choice Lesson.
Integration with Core Subject(s)
LA: Understand explicit, factual information
Connection(s)
Enrichment:
Fine Arts:
Home:
Remediation: Six-Group Activity Lesson.
Technology:
Assessment
Student response during lesson Ten Statement Review
Homework
Give students 10 problems similar to those in lesson or from your text.
Teacher Notes
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Six-Group Activity
Fractions: Fractions and Mixed Numbers
Materials:
10 index cards (3 x 5)
1 black marker1 pencil
1 envelope ( 9 x 6 )
Prepare the following index cards using the black marker to write the problems on the front of the
index cards and the pencil to write the answers of the back of the index cards.
2
2
6
2
8
2
10
2
16
8
24
8
20
10
18
6
24
6
24
3
Answers:
1 3 4 5 2
3 2 3 4 8
Have students write the whole number for each of the fractions. Show the students one card.Allow time for them to write the answer. Turn the card over and say: The answer is.
Make a copy of this study board and use it to reteach this lesson.
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Fractions and Mixed Numbers
This number line shows that4
14
= ,8
24
= , and12
34
= .
0 1 2 3 4
_______________________________________________________
0
4
1
4
2
4
3
4
4
4
5
4
6
4
7
4
8
4
9
410
411
412
413
414
4
15
416
4
On the number line, the fractions0
4,
1
4,
2
4, and
3
4are less than 1.
All of the other fractions on the number line are equal to or greater than 1. You can use division torewrite a fraction as a whole number.
Example:12
4=12 4 3
Read12
4as twelve divided by four or twelve fourths.
Example:35
7=35 7 5
Read35
7as thirty-five divided by seven or thirty-five sevenths.
Use these problems to work with students before doing the activity:32
4,
6
3,
3
3,
12
2, and
4
2.
Tell students that they are going to do an activity on fractions and mixed numbers. Lay a card onthe table and instruct the students to write the whole number for each fraction. After each answer is
written, reveal the answer on the back of the index card and say: The answer is Store thisactivity in the envelope.
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STRUCTURED CURRICULUM LESSON PLAN
Day: 099 Subject: Mathematics Grade Level: 4
Correlations (SG,CAS,CFS): 6A4, 6A5
ITBS/TAP:
Perform arithmetic operations using fractions
ISAT:
Unit Focus/Foci
Fractions
Instructional Focus/Foci
Equivalent fractions-part 1
Materials
Six-Group Activity: Reducing or Simplifying FractionsMath journalsCuisenaire rods or fraction tower cubes (optional)
Educational Strategies/Instructional Procedures
Warm-up Activity:
1.21 of 14 = ______
43 of 12 = ______
2.3
1of 15 = ______
3
2of 9 = ______
3.6
1of 12 = ______
5
3of 15 = ______
4.4
1of 20 = ______
6
5of 30 = ______
5.5
1of 25 = ______
10
7of 50 = ______
Cuisenaire rods or fraction tower cubes can be used to show equivalents. Tell students thatfractions of the same amount can have different names.
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Lesson:
Draw the following two figures on the board.
Ask students how many equal parts there are in figure A. (2) Ask how many parts are shaded. (1)
Ask what fractional part of A is shaded. (2
1) Ask the same questions for figure B. (4, 2,
4
2) Ask
if the same amount is shaded in both figures. (yes)
Repeat this process with the following figures.
Display the following problem.
Kathy and Sue bought a cherry pie. They cut the pie into 6 equal pieces. Kathy ate 2 of the pieces.
Sue said, You ate6
2of the pie. Kathy said, No. I only ate
3
1of the pie. Who was right and
why? (They both were right because6
2is the same as
3
1). Illustrate for students as below.
Draw the following:
C D E F
and
G H
A B
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Tell students to look at both sets of circles. Ask: What fraction of the circles in G are shaded.
(4
2) Ask what fracion of circles in H are shaded. (
2
1) Tell students to note the dotted line
dividing the set of circles into halves. Write6
3and
2
1under figures G and H. Ask if the amounts
shaded in figures G and H are the same. (yes) Thus,6
3 and2
1 name the same amount.
Draw additional sets and ask questions about them.
Introduce the term equivalent fractions . Tell students that equivalent fractions are equal. To getequivalent fractions, draw figures as directed earlier. Another method would be to multiply thenumerator and denominator of a fraction by the same number (not 0). This method would be
quicker than the other method.
Example:
We can see by the figures that2
1 =4
2 . Add X2 above and below the equal sign in the example.
Show the multiplication process to class.
Draw:
Have students compute the equivalent fraction. (12
9) Review the multiplication with them.
2
1 =4
2
X2
2
1
= 4
2
X2
X3
4
3=
?
?
X3
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Have students compute the next problem in their journals:
X4
2
1=
?
?(
8
4)
X4
Ten Statements
Review the ten statements and have students writeyes if they heard it in todays lesson and no ifthey did not. If the answer is no, say: The statement is true, but it was not heard in todays lesson.
1. To find equivalent fractions, multiply the numerator and denominator of a fraction by the samenumber. (yes)
2. A number that is divided by a divisor is called the dividend. (no)
3. Fractions of the same amount can have different names. (yes)4. There are 36 inches in a yard. (no)
5. 3/6 and 1/2 are different names for the same amount. (yes)6. A square is a quadrilateral with four equal sides and four equal angles. (no)
7. 1/2 and 4/8 are equivalent fractions. (yes)8. When finding an equivalent fraction, do not multiply the numerator and denominator by 0.
(yes)
9. Equivalent fractions are equal. (yes)10. Drawing figures can show that fractions are equivalent. (yes)
Free-Choice Lesson
Have students choose a lesson from the Free-Choice Activity sheet (one box per day).
Six-Group Activity
Have a group of six students, two from each ability level, complete an activity on Reducing or
Simplifying Fractions as a teacher-directed activity.
Math Workshop
Have students work in theMath Workshop after completing their Free-Choice Lesson.
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Integration with Core Subject(s)
LA: Understand explicit, factual informationSC: Analyze and interpret data
Connection(s)
Enrichment:
Fine Arts:
Home:
Remediation: Six-Group Activity Lesson.
Technology:
Assessment
Student response during lesson, Ten Statement Review.
Homework
Have students draw figures showing3
2is equivalent to
6
4, and
4
3is equivalent to
16
9.
Teacher Notes
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Six-Group Activity
Fractions: Reducing or Simplifying Fractions
Materials:
10 index cards (3 x 5)
1 black marker1 pencil
1 envelope (9 x 6 )
Prepare the following index cards using a black marker to write the problems on the front of the
cards. Use the pencil to write the answers on the back of the index cards.
612
728
39
945
2530
21
24
20
50
15
30
8
24
2
4
Answers:
1
2
1
4
1
3
1
5
5
6
7
8 2
5 1
2 1
3 1
2
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When you lay a card on the table, instruct the students to reduce or simplify the fraction using thestudy board if necessary. After the students complete a card, reveal the answer by turning it over
and saying: The answer is
Make a copy of this study board and use it when reteaching this lesson.
Reducing or Simplifying Fractions
When you reduce a fraction, the value does not change. A reduced or simplified fraction is equal to
the original fraction. When you have reduced or simplified a fraction as much as possible, thefraction is then in lowest terms.
Example 1. Reduce or simplify15
20.
Step 1. Find a number that divides evenly into the numerator and the denominator of the fraction.
5 divides evenly into both 15 and 20. 15 520 5
34
=
Step 2. Check to see if another number divides evenly into both numerator and denominator of thenewly-reduced fraction. Since no other number divides evenly into both 3 and 4, the fraction isreduced or simplified as far as is possible.
Example 2. Reduce48
64.
Step 1. Find a number that divides evenly into the numerator and the denominator of the fraction.
8 divides evenly into both 48 and 64.48 8
64 8
6
8
=
Step 2. Check to see if another number divides evenly into both numerator and denominator of the
newly-reduced fraction. 2 divides evenly into both 6 and 8.6 2
8 2
3
4
=
Step 3. Check to see if another number divides evenly into both the numerator and the denominator
of the newly-reduced fraction. In this case, the fraction is simplified or reduced as far as ispossible.
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Use these problems as practice problems:18
36,
5
10,
30
90, and
14
21.
Tell the students that they are going to do an activity like the one they just finished. Lay a card onthe table and have the students simplify or reduce the fraction. After they finish, reveal the answer
by turning the card over and saying: The answer is Store this activity in the envelope.
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STRUCTURED CURRICULUM LESSON PLAN
Day: 100 Subject: Mathematics Grade Level: 4
Correlations (SG,CAS,CFS): 6A4, 6A5
ITBS/TAP:
Perform arithmetic operations using fractions
ISAT:
Unit Focus/Foci
Fractions
Instructional Focus/Foci
Equivalent fractions Part 2
Materials
Six-Group Activity: Equivalent FractionsMath journalsFraction tower cubes or cuisenaire rods (optional)
4 (3x5) index cards per student
Educational Strategies/Instructional Procedures
Warm-up Activity:
Distribute 4 index cards (3 5) to each student. Demonstrate and have students fold three of thecards into 4 equal pieces. Then, tell students to tear the cards along the folds, and number the cards0 through 9. There will be two extra pieces which will not be needed. On the 4th index card, have
students draw a fraction bar across the middle.
Review with students that the fraction bar separates
the numerator from the denominator. Review numerator and denominator.
Tell students to listen for a fraction and to use the number cards to make that fraction on top of the4th index card, with the fraction bar.
Review numerator and denominator.
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Lesson:
Review the definition ofequivalent fractions. Draw two identical rectangles on the chalkboard.Divide one rectangle into 2 equal parts, shading one part. Divide the 2nd rectangle into 8 equal
parts. Have a student shade in parts equal to the shaded area of the first rectangle. (4 parts)
Write3
2=
?
?on the chalkboard. Have students multiply the numerator and denominator by 5.
Ask what the equivalent fraction for3
2is. (
15
10) Do the same for
?
?
7
4= (
21
12)
Write6
?
3
1= . Ask what they would multiply 3 by to get 6. (2) Replace the ? in the circle with 2.
Ask students what they should multiply the 1 in
3
1by. (2) Draw a circle above the equal sign and
write X2 in it. Repeat this process with several more problems.
Write4
1. Ask students to name three equivalent fractions for
4
1. Ask them to explain how they
got their answers.
Ten Statements
Review the ten statements and have students writeyes if they heard it in todays lesson and no if
they did not. If the answer is no, say: The statement is true, but it was not heard in todays lesson.
1. The fraction bar separates the numerator from the denominator. (yes)
2. The denominator is the bottom part of the fraction. (yes)3. The decimal point separates the dollars from cents. (no)
4. Equivalent fractions are equal. (yes)5. To find equivalent fractions, the numerator and denominator of a fraction can be multiplied by
the same number. (yes)
6. Two yards are equal to six feet. (no)
7.2
1and
4
2are equivalent fractions. (yes)
8. Fractions of the same amount can have different names. (yes)
9. The numbers one add, are called addends. (no)10. The numerator is the top part of a fraction. (yes)
X5
X5
X?
X3
X3
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Free-Choice Lesson
Have students choose a lesson from the Free-Choice Activity sheet (one box per day).
Six-Group Activity
Have a group of six students, two from each ability level, completean activity on Equivalent
Fractions as a teacher-directed activity.
Math Workshop
Have students work in theMath Workshop after completing their Free-Choice Lesson.
Integration with Core Subject(s)
LA: Understand explicit, factual information
Connection(s)
Enrichment:
Fine Arts:
Home:
Remediation: Six-Group Activity Lesson.
Technology:
Assessment
Student responses during lesson Ten Statement Review
Homework
Given 2/5, have students find an equivalent fraction and explain how they arrived at the answer.
Teacher Notes
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Six-Group Activity
Fractions: Equivalent Fractions
Materials:
10 index cards (5 x 7)
1 envelope (9 x 6 )10 Activity Cards
1 pencilScissorsGlue
Cut the activity cards out and glue one card to each index card for support. Use the pencil to write
the answer on the back of the card. Complete all cards in the same manner.
Answers:
1 2
4 8=
1 3
4 12=
3 6
4 8=
3 9
4 12=
1 4
2 8=
1 2
3 6=
3 6
5 10=
3 6
6 12=
1 2
2 4=
2 4
4 8=
Write a pair of equivalent fractions for each picture.
Make a copy of this study board to use when reteaching this activity.
Equivalent Fractions
Operations with fractions often involve finding equivalent fractions first. Fractions that areequivalent name the same value.
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Example:
Write three fractions that are equivalent to1
2.
1
2
2
4
3
6
4
8
The fractions1 2 3
, ,2 4 6
, and4
8are equivalentfractions.
You can also use multiplication to find equivalent fractions. To use multiplication, choose anumber and multiply the numerator and the denominator by that number.
Example:
Write three fractions that are equivalent to2
5.
2 2 4
5 2 10
=
2 3 6
5 3 15
=
2 10 20
5 10 50
=
The fractions4 6
,10 15
, and20
50are all equivalent to
2
5.
Use these models and problems to reteach this activity.
(1 4
2 8= ) (
1 2
4 8= )
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3
5(possible answers are
6 9 12 15 18, , , ,
10 15 20 25 30)
1
10(possible answers are
2 3 4 5 6, , , ,
20 30 40 50 60)
Tell the students that they are going to do an activity on finding equivalent fractions. Lay anactivity card on the table and ask the students to write a pair of equivalent fractions for each
picture. After displaying each card, reveal the answer by saying: The answer is
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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ACTIVITY CARDS
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STRUCTURED CURRICULUM LESSON PLAN
Day: 101 Subject: Mathematics Grade Level: 4
Correlations (SG ,CAS,CFS): 6A4, 6A5, 6B2
ITBS/TAP:
Perform arithmetic operations using fractions
ISAT:
Unit Focus/Foci
Fractions
Instructional Focus/Foci
Fractions in simplest form-part 1
Materials
Six-Group Activity: Raising to higher termsMath journalsSheet with 7 (2cm X 12cm) strips
ScissorsCrayons or colored pencils
1 envelope for each student
Educational Strategies/Instructional Procedures
Warm-up Activity:
Have students complete the following:
1.124
1= 2.
63
1= 3.
105
2= 4.
168
1= 5.
284
1=
6.164
3= 7.
105
5= 8.
93
2= 9.
248
3= 10.
217
2=
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Lesson:
Distribute sheets with 7 (2m x 12cm) rectangles. Have students color one red, one blue, one green,one orange, one yellow, one purple and one light brown. Have students neatly cut each of the
rectangles. Tell students to write the number 1 on the orange strip. Have students take the green
strip, fold it in the middle and cut along the fold. Ask students what each part is called. (half)Have students lay the green pieces next to the orange one and note that
2
2= 1. Direct students to
write2
1on each green piece. Tell students to take the red strip and cut it in half like they did the
green one. Next, have them cut the 2 red strips in half. Ask how many red strips they have now.
(4) Ask what each piece is called. (4
1) Have students write
4
1on each of the pieces and lay them
next to the green pieces and note that 1 =2
2=
4
4. Tell students to take the blue piece and cut it in
half. Have students cut the 2 blue pieces in half. Then, have them cut the 4 pieces in half. Askstudents how many blue pieces they now have. (8) Ask what each piece is called. (
8
1) Have
students write8
1on each piece and lay them next to the red strips and note that
3
3
8
8
4
4
2
21 ==== . Show students how to divide the yellow strip into 3 equal pieces have
students cut the strips into thirds and ask what each piece is called. (1/3) Have students write 1/3on each piece, and lay them next to the blue pieces to show 1 = 2/2 = 4/4 = 8/8 = 3/3. Havestudents take the purple piece and cut it into thirds. Have students cut each into thirds in half. Ask
how many pieces they have. (6) Ask what each piece is called. ( 6
1
) Have students label the
pieces and lay them next to others and note6
6is equal to others.
Have students take the brown piece and cut it into thirds. Have students cut the thirds in half andthen cut the sixths in half. Ask how many pieces they have. (12) Ask what each piece is called.
(12
1) Have students label the pieces and lay them next to other pieces and note
12
12is equal to the
others.
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Review parts of a fraction: numerator, denominator and fraction bar. Review equivalent fractions.
Write2
1on the board. Using their fraction pieces, have students show
2
1and an equivalent
fraction. (12
6,
8
4,
6
3,
4
2) Have students find other equivalent fractions using their fraction strips.
Have students show12
9. Have them make an equivalent fraction using the fewest number of pieces
of one color. The pieces must be of one color. (4
3) Have students show
8
2and again find an
equivalent fraction using the fewest number of pieces. (4
1) Tell students that
4
3is
12
9in simplest
form and4
1is
8
2in simplest form.
Tell students that another way to name a fraction in simplest form is to divide the numerator anddenominator of a fraction by the same number. Tell students that there can be no remainder.
Examples:
2
1
10
5
3
1
9
3==
At this point, use fractions that can only be divided by 1 number. Do not use fractions such as12
8.
The numerator and deonminator can be divided by 2 and 4. These will be discussed in the nextlesson.
Write8
6. Ask students what number they could divide into the numerator and denominator. (2)
Write the simplest form. (4
3) Repeat this procedure with other fractions.
Have students store their fraction pieces in the envelopes. Collect them if desired.
3
3
5
5
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Ten Statements
Review the ten statements and have students writeyes if they heard it in todays lesson and no ifthey did not. If the answer is no, say: The statement is true, but it was not heard in todays lesson.
1. The answer in subtraction is called the difference. (no)2.
12
9in simplest form is
4
3. (yes)
3. Equivalent fractions are equal. (yes)4. If one cut, thirds in half, one will get sixths. (yes)
5. There are 4 quarts in a gallon. (no)6. The line that separates the numerator from the denominator is called the fraction bar. (yes)
7.8
8
3
3= . (yes)
8. There are 180 minutes in 3 hours. (no)9. To simplify a fraction, divide the numerator and denominator by the same number. (yes)
10. To simplify12
9 , divide the numerator and denominator by 3. (yes)
Free-Choice Lesson
Have students choose a lesson from the Free-Choice Activity sheet (one box per day).
Six-Group Activity
Have a group of six students, two from each ability level, complete an activity on Raising to higherterms as a teacher-directed activity.
Math Workshop
Have students work in theMath Workshop after completing their Free-Choice Lesson.
Integration with Core Subject(s)
LA: Understand explicit, factual information
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Connection(s)
Enrichment:
Fine Arts:
Home:
Remediation: Six-Group Activity Lesson.
Technology:
Assessment
Student responses during lesson, Ten Statement Review
Homework
Have students complete these problems.
1. ______10
8= 2. ______
6
4= 3. ______
20
15=
4. ______12
6= 5. ______
18
12= 6. ______
25
20=
Teacher Notes
2
2
2
2
3
3
3
3
6
6
5
5
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Six-Group Activity
Fractions: Raising to Higher Terms
Materials:
10 index cards (3 x 5)
1 black marker1 pencil
1 envelope (9 x 6 )
Prepare the following index cards using a black marker to write the problems on the front of the
cards. Use the pencil to write the answers on the back of the index cards.
15
810
23
46
36
2
7
2
10
2
12
5
6
4
5
Answers:
Answers may vary. When you look at the answers written, say okto each student if the answer iscorrect. If the answer is not correct, give the correct answer.
Lay a card on the table and give the instructions to raise the fraction to a higher term. Give thestudents time to write the answer before revealing the answer and saying: The answer is
Make a copy of this study board and use it when reteaching this lesson.
Raising Fractions to Higher Terms
Equivalent fractions can be made by raising them to higher terms. You raise fractions to higherterms by multiplying the numerator and the denominator by the same number.
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Note: You cannot use the number 1 to raise a fraction because the fraction remains the same.
Example 1. Raise1
2to a higher term.
Multiply the numerator and denominator by 3.
1 3
2 3
3
6
= ;1
2and
3
6are equivalent.
Example 2. Raise6
8to a higher term.
Multiply the numerator and denominator by 4.
6 4
8 4
24
32
= ;
6
8 and24
32 are equivalent.
Use these sample problems to show the students how to raise a fraction to a higher term. (2
9,
10
30,
8
10, and
3
7)
After you demonstrate how to solve the problems, tell the students that they are going to do an
activity that calls for them to raise fractions to higher terms. Lay a card on the table and give thestudents a chance to write the answer. After they have written the answer, turn the index card over,
reveal the answer and say: The answer is Store all materials from this activity in theenvelope.
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STRUCTURED CURRICULUM LESSON PLAN
Day: 102 Subject: Mathematics Grade Level: 4
Correlations (SG,CAS,CFS): 6A4, 6A5
ITBS/TAP:
Perform arithmetic operations using fractions
ISAT:
Unit Focus/Foci
Fractions
Instructional Focus/Foci
Fractions in simplest form-part 2
Materials
Six-Group Activity: Simplifying fractionsMath journals
Educational Strategies/Instructional Procedures
Warm-up Activity:
Distribute envelopes with fraction pieces from the previous lesson.
Using their fraction pieces from the previous lesson, have students show the fraction12
8. Next,
have them show two equivalent fractions. One of those fractions must be made using the fewest
number of pieces. All pieces for each fraction must be one color.
Lesson:
Review fractions of whole numbers. Write the problems below on the chalkboard. Have students
copy and complete them in their math journals.
1.74 of 21 = ______ 2.
52 of 35 = ______
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Choose a couple of students to explain their solutions.
1) 21 7 = 3, 4 3 = 12, therefore7
4 of 21 = 12
2) 35 5 = 7, 7 2 = 14, therefore,5
2 of 35 = 14.)
Review equivalent fractions. Ask for definitions. Write the problems below on the chalkboard.
Have students copy and complete them in their journals.
3)1 8
4 ?= 4)
4 12
9 ?= 5)
36
?
6
5= 6)
40
?
5
2=
Have students explain their solutions.
Review the lesson from last class session, fractions in simplest form. Write the problems below on
the board. Have students copy and complete them in their math journals.
7)?
?
21
14= 8)
?
?
12
4=
Have students give their solutions. Write9
6on the chalkboard. Ask students to tell what number
both the numerator and denominator can be divided by. (3) Remind them that there cannot be a
remainder for either division portion. Ask students for the simplest form of9
6. (
3
2)
Write16
12 on the chalkboard. Ask students what number can be divided into both the numerator
and denominator without any remainder. Ask students if they realize that 2 answers are possible: 2and 4.
7
7
4
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Show =16
12and ask students for the solution. (
8
6) Write
8
6next to the equal sign.
12 6
16 8
=
Have students look at8
6. Ask if the 6 and 8 can be divided evenly by any number other than 1.
(yes) Ask what that number is. (2) Show: == 86
16
12? Have students complete this portion of
the problem. (4
3) Ask if the 3 and 4 can be divided evenly by any number other than 1. (no)
Therefore, this number is in simplest form. Write =16
12on the chalkboard. Ask students for the
solution. (4
3) Ask students how the solutions were different. (One had 2 steps and the other 1).
Ask which solution was quicker. (The second one with one step) Ask why it was quicker. (Thedivision was done with a larger number 4.) Tell students they should always try to divide using the
largest number possible. This will help them find their solution quicker. Write 18
12
. Repeat the
same process. Remind students that they can divide the numerator by 2, 3 and 6. Remind students
that a fraction is in simplest form when the numerator and denominator can only be evenly dividedby 1. Some students will grasp finding the greatest common factor concept before others. Stress tostudents that using more than one step to find the simplest form is alright. Write the problems
below on the chalkboard. Have students copy problems in their math journals and find the simplestform for each.
1) =12
82) =
20
183) =
24
204) =
30
24
Have students explain their solutions. If they used more than one step, ask how they could havesolved the problems quicker. (By using larger divisors) Remind students again that it is alright touse more than one step, but they should look for the largest common divisor possible.
Tell students that when they find the simplest form of a fraction that it is equivalent to the original
fraction. Therefore to find equivalent fractions, one can multiply or divide the numerator anddenominator by the same number other than 1 or zero.
2
2
2
2
4
4
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Ten Statements
Review the ten statements and have students writeyes if they heard it in todays lesson and no ifthey did not. If the answer is no, say: The statement is true, but it was not heard in todays lesson.
1. Equivalent fractions are equal. (yes)2. To find
5
4of 10, one divides 10 by 5 and multiplies 2 4. (yes)
3. A fraction is in simplest form when the numerator and denominator can be divided evenly byonly 1. (yes)
4. Taking more than 1 step to find the simplest form of a fraction is alright. (yes)5. There are 60 seconds in a minute. (no)6. To find equivalent fractions, one can multiply or divide the numerator and denominator by the
same number. (yes)
7.4
5is an improper fraction. (no)
8. To find the simplest form of18
6 one divides the numerator and denominator by 6. (yes)
9. When the mean of a group of numbers is found, the average is found. (no)
10. If one divides the numerator and denominator of the fraction12
10by 2, one gets get
6
5. (yes)
Free-Choice Lesson
Have students choose a lesson from the Free-Choice Activity sheet (one box per day).
Six-Group Activity
Have a group of six students, two from each ability level, complete an activity on Simplifying
Fractions as a teacher-directed activity.
Math Workshop
Have students work in theMath Workshop after completing their Free-Choice Lesson.
Integration with Core Subject(s)
LA: Understand explicit, factual information
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Connection(s)
Enrichment:
Fine Arts:
Home:
Remediation: Six-Group Activity Lesson.
Technology:
Assessment
Students response during Ten Statement Review
Homework
Assign students to study notes and previous homework assignments for the test. Have students
explain how to find the simplest form of20
16.
Teacher Notes
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Six-Group Activity
Fractions: Simplifying Fractions
Materials:
20 index cards (3 x 5)
1 envelope (9 x 6 )1 black marker
1 pencil
Prepare the following index cards using the black marker to write the problems on the front of the
cards. Write the answers on the back of the cards in pencil.
2
2(1)
2
4(1
2)
6
12(1
2)
9
12(3
4)
15
18(5
6)
66
(1) 510
(12
) 812
( 23
) 1010
(1) 515
(13
)
4
10(2
5)
3
3(1)
9
18(1
2)
6
8(3
4)
12
24(1
2)
5
20(1
4)
7
14(1
2)
3
15(1
5)
4
12(1
3)
8
8(1)
Place the study board on the table with an example of a fraction that needs to be simplified. Say:
Simplifying a fraction means writing it an easier way with smaller numbers. Look at the followingexamples to see how fractions are reduced.
Example 1: Simplify15
20.
Find a number that divides evenly into the numerator and the denominator of the fraction. Ex: 5
divides evenly into both 15 and 20.15 5
20 5
=3
4.
Check to see whether or not the numerator and denominator can be divided evenly by anothernumber. Since 3 and 4 cannot both be divided evenly by another number, the fraction is reduced as
far as possible.
Say: Look at the second example:48
64.
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Find a number that evenly divides the numerator and the denominator. 8 goes evenly into both 48
and 64.48
64 =
8
8
6
8
Check to see if another number goes evenly into both the numerator and denominator of the
fraction. Two evenly divides goes evenly into both 6 and 8. Check to see whether another numbergoes evenly into both the numerator and denominator of the fraction. In this case, the fraction issimplified as far as possible.
When you reduce a fraction, the value does not change. A reduced fraction is equal to the original
fraction.
Write the name of the activity and materials needed on the front of the 9 x 6 envelope and
store the index cards and study board in it. Explain the rules for simplifying or reducing fractions.Copy this study board.
Simplifying Fractions
Rule #1: If the numerator and denominator are the same, the fraction equals 1. Example:6
6= 1,
5
5= 1.
Rule #2: If the numerator can divide evenly into the denominator, this is a way to simplify.
5
10; 5 goes into 10 two times and 5 goes into itself one time. The answer is
1
2.
3
6;
3 goes into 6 two times. 3 goes into itself one time. The answer is1
2
.
The numerator can divide the denominator evenly. Ex.:2
10=
1
5.
Rule #3: If the second rule wont work, find a number (except 1) that can divide the
numerator and denominator evenly. Example:6
8; 2 can divide into 6 and 8 evenly.
6
8
2
2=
3
4.
Find the number that can divide both the numerator and denominator evenly. (3)
Ex.:6
9 3
3 =2
3
When the numerator and denominator are the same, the fraction always equals one. Ex.:6
6= 1;
5
5= 1.
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Tell the students that they are going to risk writing the answers to these problems. Begin byplacing an index card on a flat surface. Give the students one to two minutes to write the answer.
When giving the answer, turn the index card over and say: The answer is
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STRUCTURED CURRICULUM LESSON PLAN
Day: 103 Subject: Mathematics Grade Level: 4
Correlations (SG,CAS,CFS): 6A4, 5; 6B2
ITBS/TAP:
Demonstrate understanding of measurementconcepts and skills
Perform arithmetic operations using fractions
ISAT:
Demonstrate understanding of measurementconcepts and skills
Unit Focus/Foci
Fractions
Instructional Focus/Foci
Formal Assessment
Materials
Prepared test
Educational Strategies/Instructional Procedures
Distribute tests to students.
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Test
1) Shade in10
7of this figure.
2) Shade in4
3of this figure.
3) Shade in figure B to make it equivalent to figure A.
Write 2 equivalent fractions for each of the following:
4)2
1, _______, _______ 5)
5
2, _______, _______
6)4
3, _______, _______ 7) 1, _______, _______
Complete the equivalent fractions below.
8)93
2= 9)
164
4=
10)5
6 36= 11)
2412
7=
A. B
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Solve:
12)5
3of 35 = ______ 13)
9
1of 18 = _______
14)85 of 24 = _______ 15)
72 of 28 = _______
Write these fractions in simplest form:
16)21
14= _______ 17)
16
12= _______
18)10
8= _______ 19)
30
25= _______
Using the word box, name the parts of this fraction. Write the name on the line next to the letter.
9
6
20) A= _________________________________
21) B = _________________________________
22) C= __________________________________
Solve:
23) Tina had 20 Beanie Babies. She put4
1of them in her backpack. How many did she place in
her backpack?
24) Cory and Sam had 24 cars. If each of them took half, how many cars did they each get?
25) Kathy wants to pick4
3of the flowers in her garden. If there are 36 flowers in her garden how
many flowers should she pick?
Word Box
Dividend Fraction barNumerator Simplest form
Fraction Number
Solution Denominator
A
BC
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Ten Statements
Review the ten statements and have the students writeyes if they heard it in todays lesson and noif they did not. If the answer is no, say: The statement is true, but it was not heard in todays
lesson.
No Ten Statements today.
Free Choice Lesson
Have students choose a lesson from the Free Choice Activity sheet (one box per day).
Six-Group Activity
No Six-Group Activity today.
Math Workshop
Have students work in theMath Workshop after completing their Free Choice Lesson.
Integration with Core Subject(s)
LA: Understand explicit, factual information
SC: Analyze and interpret data
SS: Select appropriate information for intended purpose
Connection(s)
Enrichment:
Fine Arts:
Home:
Remediation:
Technology:
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Assessment
Formal
Homework
Teacher Notes
Answer key to test:
1) Students may shade any of the boxes.
2) Students may shade any 6 of the boxes.
3) Students may shade in any 6 of the boxes.
Possible answers (4 through 7)
4)8
4,
4
25)
15
6,
10
4
6)112
9,
8
67)
3
3,
2
2
8) 6 9) 16
10) 30 11) 14
12) 21 13) 2
14) 15 15) 8
16)3
217)
4
3
18)5
419)
6
5
20) Numerator 21) Fraction bar 22) Denominator
23) 5 24) 12 25) 27