malt©2006 maths/fractions slide show : lesson 2 fractions lesson 2 understanding mixed numbers and...
TRANSCRIPT
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Fractions Lesson 2Understanding mixed
numbersand improper fractions
MALT©2006 Maths/Fractions Slide Show : Lesson 2
These numbers are called
fractions12 3
15
56
23
47
1222
MALT©2006 Maths/Fractions Slide Show : Lesson 2
These numbers are called
Improper fractions3
2 2015
86
73 11
7
12 2
MALT©2006 Maths/Fractions Slide Show : Lesson 2
What do you notice about
Improper fractions?3
2 2015
86
73 11
7
12 2
MALT©2006 Maths/Fractions Slide Show : Lesson 2
All the improper fractions have the top number
bigger than the bottom number.
32 20
15
86
73 11
7
12 2
MALT©2006 Maths/Fractions Slide Show : Lesson 2
That means that these improper fractions are
greater than 1.
32 20
15
86
73 11
7
12 2
MALT©2006 Maths/Fractions Slide Show : Lesson 2
That means that these improper fractions are
greater than 1.
32
86
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out
Improper fraction or fraction
when you see each number
Ready ?
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out
Improper fraction or fraction
when you see each number
23
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out
Improper fraction or fraction
when you see each number
24
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out
Improper fraction or fraction
when you see each number
82
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out
Improper fraction or fraction
when you see each number
25
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out
Improper fraction or fraction
when you see each number
49
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out
Improper fraction or fraction
when you see each number
11 3
MALT©2006 Maths/Fractions Slide Show : Lesson 2
This is called a
mixed number
112
MALT©2006 Maths/Fractions Slide Show : Lesson 1
Here are some
mixed numbers
325
146
8
13
49
1 22 5
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Shout out what the number is
Improper fraction or
mixed number
MALT©2006 Maths/Fractions Slide Show : Lesson 2
improper fraction or mixed number
4
2
MALT©2006 Maths/Fractions Slide Show : Lesson 2
improper fraction or mixed number
4
83
MALT©2006 Maths/Fractions Slide Show : Lesson 2
improper fraction or mixed number
22
5
MALT©2006 Maths/Fractions Slide Show : Lesson 2
improper fraction or mixed number
141
4
MALT©2006 Maths/Fractions Slide Show : Lesson 2
So an improper fraction has a bigger number
at the top.
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Improper fractions can be written as
mixed numbers.
MALT©2006 Maths/Fractions Slide Show : Lesson 2
This number can also be written as
112
32
MALT©2006 Maths/Fractions Slide Show : Lesson 2
can you explain why?
112
32
MALT©2006 Maths/Fractions Slide Show : Lesson 2
112
32
mixed number
Improper fraction
MALT©2006 Maths/Fractions Slide Show : Lesson 2
214
94
mixed number
Improper fraction
MALT©2006 Maths/Fractions Slide Show : Lesson 2
Try these with a
friend…..2 23
?3
MALT©2006 Maths/Fractions Slide Show : Lesson 2
And this one….
1 34
?4
MALT©2006 Maths/Fractions Slide Show : Lesson 2
And this one….
4 12
?2
MALT©2006 Maths/Fractions Slide Show : Lesson 2
And this one….
2 45
?5
MALT©2006 Maths/Fractions Slide Show : Lesson 2
And this one….
1 68
??
MALT©2006 Maths/Fractions Slide Show : Lesson 2
And this one….
5 13
??
MALT©2006 Maths/Fractions Slide Show : Lesson 2
here is the link
5 13
16 3
5 x 3 = 15 then add the 1
and you get 16 thirds
MALT©2006 Maths/Fractions Slide Show : Lesson 2
here is the link
2 25
12 5
2 x 5= 10 then add the 2
and you get 12 fifths
MALT©2006 Maths/Fractions Slide Show : Lesson 2
here is the link
4 56
29 6
4 x 6 = 24 then add the 5
and you get 29 sixths
MALT©2006 Maths/Fractions Slide Show : Lesson 2
now try these in you jotter
WALT: to understand link between mixed numbers and improper fractions
33622
3 21342
4 456 62
4
1 3 2 4 7 2
1 2 5 6 3 5
23
23
29
23
23
25
35
14
23
23
25
23
(a) (b) (c) (d) (e) (f)
(g) (h) (i) (j) (k) (l)
(m)
(n) (o) (q)(p) (r)
MALT©2006 Maths/Fractions Slide Show : Lesson 2
answers
21 6
83
73
18 4
29 6
26 4
53
11 3
20 9
14 3
23 3
12 5
85
94
17 3
20 3
17 5
17 3
(a) (b) (c) (d) (e) (f)
(g) (h) (i) (j) (k) (l)
(m)
(n) (o) (q)(p) (r)
MALT©2006 Maths/Fractions Slide Show : Lesson 2
So an improper fraction can be
written as a mixed number.
MALT©2006 Maths/Fractions Slide Show : Lesson 2
End of this lesson, any questions or comments?