Welcome to Welcome to Math 112Math 112

Class #2 – 9/10/14Class #2 – 9/10/14

Welcome to Welcome to Math 112Math 112

Class #2 – 9/10/14Class #2 – 9/10/14

Warm-up for today:Rachel fenced off an area in the shape of a rectangle for her dog. She used 48 feet of fencing material, and the rectangle is 6 feet longer than it is wide. What are the dimensions (length and width) of the rectangle?

Please put HW #1 on my desk in a neat pile! Be sure your name is printed neatly on front and all pages are stapled!

Tonight’s Agenda1. Turn in HW #1 and do warmup2. Class norms3. Return diagnostic test4. Multiplication practice!5. “Guess & Check” strategy6. Fraction topics:

a. Equivalent fractionsb. Simplifying fractionsc. Addition and subtraction of fractions d. Multiplying fractions

Tonight’s positive quote!

Tonight’s focus: Math practice #1

Make sense of problems and

persevere in solving them.

Persevere Continue in a course of action even in the face of difficulty or with little

or no prospect of success

Persevere - Continue in a course of action even in the

face of difficulty or with little or no prospect of

success

Class norms• Everyone participates• Be patient with one another• Respect opinions without judgment• Pay attention• Ask peers for help• Be courteous• Speak loudly• Use technology appropriately

Diagnostic test

• Keep a copy of the test, the answer key, and your test in your notebook.

• The goal is for you to see improvement by the end of the semester!

Reminders!

• Complete Student Survey (if you didn’t do this last week)

• Test #1 is next week! If you do not take the test you will be dropped from the course!

Have you added your email address to the

website?www.teacherweb.com

1. Find your teacher2. CA (A – M)3. Los Angeles Pierce4. McCarthy5. Newsflash 6. Add your email address!

:• Textbook• Notebook (including graph

paper)• SMALL STAPLER! • Ruler (optional)• TI 84 graphing calculator

(OPTIONAL!!)

Did you get these supplies yet?

Math Multiplication Table – you need to KNOW this!

Apartment Apartment ProblemProblem

P. 22 P. 22(1-40)(1-40)

Problem 1-40The Apartment

•Your task: Find the possible dimensions for every room in the apartment.

Section 1.2.1 (P. 22)Section 1.2.1 (P. 22)How can I solve it?How can I solve it?Section 1.2.1 (P. 22)Section 1.2.1 (P. 22)How can I solve it?How can I solve it?

Solving Problems with Solving Problems with Guess and CheckGuess and Check

Objectives:•To solve a complex problem and develop a new problem-solving strategy called “Guess and Check”

How can we organize our work for the

apartment problem using a table?

Here’s an example:

More examples of “guess and check” tables

•Text p. 27 #51b

Rachel fenced off an area in the shape of a rectangle for her dog. She used 48 feet of fencing material, and the rectangle is 6 feet longer than it is wide. What are the dimensions (length and width) of the rectangle?

FractionsFractionsFractionsFractions

Modeling Fractions

You try!• Draw a model of 3/5• What is the numerator? ____ • What is the denominator? ____

Equivalent Fractions• Is there another way to represent

2/3?

2 ?

3 ?

Adding and Subtracting Fractions

Multiplying Fractions

1 3Multiply:

2 8

Homework #2•Finish Sample test #1•Worksheet: Adding and

Subtracting fractions (23 problems)

•Worksheet: Multiplying fractions (20 problems)