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Count Equal Groups Count Equal Groups

Count Equal Groups - PowerPoint Presentation

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Count Equal Groups - PPT Presentation

MAFS3OA11 How many tires does each car have How many tires does each car have 4 4 4 4 Each car represents a GROUP of 4 tires 4 4 4 4 Since each group is EQUAL we can COUNT EQUAL ID: 469518

equal groups count crayons groups equal crayons count wheels bicycle skip find tires arms twinkies packs group counting pack

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Slide1

Count Equal Groups

MAFS.3.OA.1.1Slide2

How many tires does each car have?Slide3

How many tires does each car have?

4

4

4

4Slide4

Each car represents a GROUP of 4 tires.

4

4

4

4Slide5

Since each group is EQUAL, we

can

COUNT

EQUAL

GROUPS by skip counting.

4

4

4

4

We can skip count to find how many tires there are in all.Slide6

Let’s skip count by 4s to find how many tires in all.

4

4

4

4

4,

8,

12,

16

+4

+4

+4Slide7

4

4

4

4

4,

8,

12,

16

There are 16 tires in all.

Let’s skip count by 4s to find how many tires in all.Slide8

4

4

4

4

4,

8,

12,

16

So, 4 equal groups of 4 tires is 16 tires.

There are 16 tires in all.Slide9

How many arms does each student have?Slide10

How many arms does each student have?

2

2

2

2

2Slide11

Each student represents a GROUP of 2 arms.

2

2

2

2

2Slide12

Since each group is EQUAL, we can

COUNT EQUAL GROUPS by skip counting.

2

2

2

2

2

We can skip count to find how many arms there are in all.Slide13

Since each group is EQUAL, we can

COUNT EQUAL GROUPS by skip counting.

2

2

2

2

2

We can skip count to find how many arms there are in all.

2,

4,

6,

8,

10Slide14

Since each group is EQUAL, we can

COUNT EQUAL GROUPS by skip counting.

2

2

2

2

2

There are 10 arms in all.

2,

4,

6,

8,

10Slide15

So, 5 equal groups of 2 arms is 10 arms in all.

2

2

2

2

2

There are 10 arms in all.

2,

4,

6,

8,

10Slide16

How many crayons are in each pack?Slide17

How many crayons are in each pack?

3

3

3

4Slide18

How many crayons are in each pack?

3

3

3

4

Are these packs of crayons

EQUAL GROUPS?Slide19

How many crayons are in each pack?

3

3

3

4

Are these packs of crayons

EQUAL GROUPS?

NOSlide20

3

3

3

4

Are these packs of crayons

EQUAL GROUPS?

NO

Can we find out how many crayons there are in all?Slide21

3

3

3

4

Are these packs of crayons

EQUAL GROUPS?

NO

Can we find out how many crayons there are in all?

YESSlide22

3

3

3

4

Are these packs of crayons

EQUAL GROUPS?

NO

Can we find out how many crayons there are in all?

YES

But we won’t skip count because we don’t have EQUAL GROUPS.Slide23

3

3

3

4

Are these packs of crayons

EQUAL GROUPS?

NO

Can we find out how many crayons there are in all?

YES

But we won’t skip count because we don’t have EQUAL GROUPS.

+

+

+

=

13 crayons in allSlide24

Are there EQUAL GROUPS of bicycle wheels? Slide25

Are there EQUAL GROUPS of bicycle wheels?

YES

There are 8 equal groups of bicycle wheels.Slide26

Are there EQUAL GROUPS of bicycle wheels?

YES

So, we can skip count to find how many bicycle wheels there are in all.

There are 8 equal groups of bicycle wheels.Slide27

Are there EQUAL GROUPS of bicycle wheels?

YES

There are 16 bicycle wheels in all.

2

4

6

8

10

12

14

16

There are 8 equal groups of bicycle wheels.Slide28

So, 8 equal groups of 2 bicycle wheels is 16 bicycle wheels in all.

There are 16 bicycle wheels in all.

2

4

6

8

10

12

14

16

There are 8 equal groups of bicycle wheels.Slide29

Take out 12 counters.Slide30

Put them into

EQUAL GROUPS of 2.Slide31

Put them into

EQUAL GROUPS of 2.

2 + 2 + 2 + 2 + 2 + 2 = 12

6 twos is 12

6 groups of 2 is 12Slide32

Take out 12 counters.Slide33

Put them into

EQUAL GROUPS of 4.Slide34

Put them into

EQUAL GROUPS of 4.

4 + 4 + 4 = 12

3 fours is 12

3 groups of 4 is 12Slide35

Wrap-Up

How can you count equal groups efficiently?

How can you find out how many 4 groups of 3 is?Slide36

Bonus Questions

Renee has 4 packages of Twinkies. There are 2 Twinkies in each package. How many Twinkies does she have altogether?

This is 1 package of Twinkies.

Are there EQUAL GROUPS of Twinkies?

How can I find out how many Twinkies are there?

2, 4, 6, 8. There are 8 Twinkies in all.

OR

2+2+2+2=8. There are 8 Twinkies in allSlide37

Bonus Questions

2. What is 5 groups of 3?

3, 6, 9, 12, 15.

5 groups of 3 is 15.

5 threes is 15.