Grouping Objects in Ones and Tens

Number Sense: 1.0 Count and group objects in ones and tens (e.g.,

three groups of 10 and 4 equals 34, or 30+4

Our Learning Objective

Today we will count and group objects in

ones and tens.CFU: What will we do today boys and girls? What are we going to group the objects in?

Activate Prior Knowledge

We know that numbers zero to nine have

only one digit. For example:

0 1 2 3 4 5 6 7 8 9Once we reach 10 we have two digits

and we call this 10.

We are going to visit the website below to help us practice counting

ones and tens using base 10

blocks. http://www.learningbox.com/Base10/BaseTen.html

 

 

Wow all the bats Wow all the bats flew out of the flew out of the cave!!!!cave!!!!

Concept Development

 

 

I will need to count them all I will need to count them all one by one to find out how one by one to find out how many flew out, but before I many flew out, but before I do, I will follow the right do, I will follow the right steps to counting. steps to counting.

Guided Practice

StepsStepsStep one: Count ten bats. Step one: Count ten bats.

Step two: Draw a circle around the group of ten Step two: Draw a circle around the group of ten

bats.bats.

Step three: Keep making groups of ten until you Step three: Keep making groups of ten until you

only ones left. only ones left.

Step four: Write the number of the group of Step four: Write the number of the group of

tens in the tens column and the tens in the tens column and the

number of ones left over in the ones number of ones left over in the ones column.column.

Step five: Write your number on the line. The Step five: Write your number on the line. The number number

you write is the number of bats that flew you write is the number of bats that flew out of the out of the

cave.cave.

 

 

I will need to count them in order to find I will need to count them in order to find out how many flew out. I will make out how many flew out. I will make groups of tens first and then count the groups of tens first and then count the ones left over.ones left over.

Skill Development

 

 

Let’s find out if we counted correctly.Let’s find out if we counted correctly.

Skill Development

12

3

4

5

6

7

8

910

11

12

13

14

15

16

17

18

19

20

21

22

23

24

The number 24 has The number 24 has

2 groups of ten and 4 2 groups of ten and 4 ones.ones.

2 4TenTen

ssOneOne

ss

I counted 24 bats

Guided Practice

 

 

Guided Practice 1

 

Guided Practice 2

 

 

Guided Practice 3

ImportanceIt is important to know how to group

object in tens and ones because it helps us

count correctly and helps us understand

place value.

Non-Example

Counting five bats,

is not an example of counting tens and

ones since you are only counting ones.

1 2 3 4 5

Name:_____________________

Independent Practice 1

TensTens OneOness

StepsSteps

Step one: Count ten Step one: Count ten bats. bats.

Step two: Draw a Step two: Draw a circle around the circle around the group of ten bats.group of ten bats.

Step three: Keep Step three: Keep making groups of ten making groups of ten until you only ones until you only ones left. left.

Step four: Write the Step four: Write the number of the group number of the group of tens in the tens of tens in the tens column and the column and the number of ones left number of ones left over in the ones over in the ones column.column.

Step five: Write your Step five: Write your number on the line. number on the line. The number you write The number you write is the number of bats is the number of bats that flew out of the that flew out of the cave.cave.

How many flew out?

____________

Name:_____________________

Independent Practice 1

TensTens OneOness

StepsSteps

Step one: Count ten Step one: Count ten bats. bats.

Step two: Draw a Step two: Draw a circle around the circle around the group of ten bats.group of ten bats.

Step three: Keep Step three: Keep making groups of ten making groups of ten until you only ones until you only ones left. left.

Step four: Write the Step four: Write the number of the group of number of the group of tens in the tens tens in the tens column and the column and the number of ones left number of ones left over in the ones over in the ones column.column.

Step five: Write your Step five: Write your number on the line. number on the line. The number you write The number you write is the number of bats is the number of bats that flew out of the that flew out of the cave.cave.

How many flew out?

____________

1 11 16

12

23

27

24 25

2217

293128

26

21

33

2

318

19

20

6

7

8

9

10

515

13

34

32

3035

37

3938

36

144

Name:_____________________

Independent Practice 2

TensTens OneOness

StepsSteps

Step one: Count ten Step one: Count ten bats. bats.

Step two: Draw a Step two: Draw a circle around the circle around the group of ten bats.group of ten bats.

Step three: Keep Step three: Keep making groups of ten making groups of ten until you only ones until you only ones left. left.

Step four: Write the Step four: Write the number of the group number of the group of tens in the tens of tens in the tens column and the column and the number of ones left number of ones left over in the ones over in the ones column.column.

Step five: Write your Step five: Write your number on the line. number on the line. The number you write The number you write is the number of bats is the number of bats that flew out of the that flew out of the cave.cave.

How many flew out?

____________

Name:_____________________

Independent Practice 2

TensTens OneOness

StepsSteps

Step one: Count ten Step one: Count ten bats. bats.

Step two: Draw a Step two: Draw a circle around the circle around the group of ten bats.group of ten bats.

Step three: Keep Step three: Keep making groups of ten making groups of ten until you only ones until you only ones left. left.

Step four: Write the Step four: Write the number of the group of number of the group of tens in the tens tens in the tens column and the column and the number of ones left number of ones left over in the ones over in the ones column.column.

Step five: Write your Step five: Write your number on the line. number on the line. The number you write The number you write is the number of bats is the number of bats that flew out of the that flew out of the cave.cave.

How many flew out?

____________

1 11 16

12

23

27

24 25

2217

29

31

28

2621

33

2

318

19

20

6

7

8

9

10

515

13

32

30

144

Name:_____________________

Independent Practice 3

TensTens OneOness

StepsSteps

Step one: Count ten Step one: Count ten bats. bats.

Step two: Draw a Step two: Draw a circle around the circle around the group of ten bats.group of ten bats.

Step three: Keep Step three: Keep making groups of ten making groups of ten until you only ones until you only ones left. left.

Step four: Write the Step four: Write the number of the group number of the group of tens in the tens of tens in the tens column and the column and the number of ones left number of ones left over in the ones over in the ones column.column.

Step five: Write your Step five: Write your number on the line. number on the line. The number you write The number you write is the number of bats is the number of bats that flew out of the that flew out of the cave.cave.

How many flew out?

____________

Name:_____________________

Independent Practice 3

TensTens OneOness

StepsSteps

Step one: Count ten Step one: Count ten bats. bats.

Step two: Draw a Step two: Draw a circle around the circle around the group of ten bats.group of ten bats.

Step three: Keep Step three: Keep making groups of ten making groups of ten until you only ones until you only ones left. left.

Step four: Write the Step four: Write the number of the group of number of the group of tens in the tens tens in the tens column and the column and the number of ones left number of ones left over in the ones over in the ones column.column.

Step five: Write your Step five: Write your number on the line. number on the line. The number you write The number you write is the number of bats is the number of bats that flew out of the that flew out of the cave.cave.

How many flew out?

____________

1 11

1612

22

17

23

21

2

3

18

19

20

6

7

8

9

10

5

1513

14

4

How many bats did you count?

TensTens OnesOnes

Write the number here:___________________________