1. Learning Objective Name __________________________
Today, we will put objects1 in groups of ten.
1 things you can hold, touch, or see
CFU
What are we going to do today?
What are objects?
Activate (or provide) Prior Knowledge
Skip counting is counting by numbers that are not one.
Skip count to 100 by tens. 10
, 20
, 30
, 40
, 50
, 60
, 70
, 80
, 90
, 100
How many balls is the train carrying? 33
Train 1: 10
Train 2: 10 25
CFU
Teacher reminds students of skip counting and counts the number of balls train 1 is carrying. Students skip count to 100 by tens and count the number of balls train 2 is carrying. Students, you already know how to skip count by tens. Today, we are going to skip count objects by ten after we put the objects in groups of ten.
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

2. 24 24 10, 20, 30,… A group of ten has ten objects.
Concept Development
A group of ten has ten objects.
We can use skip counting to make it easier to count objects in groups of ten.
10, 20, 30,…
Example: How many ladybugs?
ten, twenty, thirty,… 10 10 10 10 10
total2 24
total2 24 20 20 20 20 20 21 21 21 21 22 22 22 23 23 24
2 final amount
CFU
Which example is a group of ten? How do you know?
A B
In your own words, what is a group of ten? A group of ten is _______________.
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

3. 12 13 A group of ten has ten objects. 1. 2. 10 10 11 12 11 12 13 total
Skill Development/Guided Practice
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining3 objects.
Step #3: Write the total number of objects and read it aloud.
3 left over 1. 2. 10 10 11 12 11 12 13
total 12
total 13
CFU
How did I put the objects in groups of ten? How did I count the remaining objects? How did I know how many total objects there are? How did you put the objects in groups of ten? How did you count the remaining objects? How did you know how many total objects there are?
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

4. 27 26 A group of ten has ten objects. 3. 4. 10 10 20 20 21 22 23 24 25
Skill Development/Guided Practice (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 3. 4. 10 10 20 20 21 22 23 24 25 21 22 23 24 25 26 27 26
total 27
total 26
CFU
How did I put the objects in groups of ten? How did I count the remaining objects? How did I know how many total objects there are? How did you put the objects in groups of ten? How did you count the remaining objects? How did you know how many total objects there are?
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

5. 20 30 A group of ten has ten objects. 5. 6. 10 10 20 20 30 total total
Skill Development/Guided Practice (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 5. 6. 10 10 20 20 30
total 20
total 30
CFU
How did I put the objects in groups of ten? How did I count the remaining objects? How did I know how many total objects there are? How did you put the objects in groups of ten? How did you count the remaining objects? How did you know how many total objects there are?
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

6. 16 15 A group of ten has ten objects. 7. 8. 11 12 11 13 14 12 13 15 16
Skill Development/Guided Practice (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 7. 8. 11 12 11 13 14 12 13 15 16 14 15
total 16
total 15
CFU
How did I put the objects in groups of ten? How did I count the remaining objects? How did I know how many total objects there are? How did you put the objects in groups of ten? How did you count the remaining objects? How did you know how many total objects there are?
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

7. Importance
A group of ten has ten objects.
Putting objects in groups of ten will help you count amounts, such as money. ¢
total
CFU
Does anyone else have another reason why it is important to put objects in groups of ten? (pair-share) Why is it important to put objects in groups of ten? You may give me one of my reasons or one of your own. Which reason is more important to you? Why?
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

8. 14 23 A group of ten has ten objects. 1. 2. 10 10 11 12 13 14 20 21 22
Closure
A group of ten has ten objects.
1. In your own words, what is a group of ten? A group of ten is ______________.
2. Put objects in groups of ten below.
3. What did you learn today about grouping objects in tens?
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 1. 2. 10 10 11 12 13 14 20 21 22 23
total 14
total 23
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

9. 11 25 A group of ten has ten objects. 1. 2. 10 10 11 20 total 21 22 23
Independent Practice
Name __________________________
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 1. 2. 10 10 11 20
total 11 21 22 23 24 25
total 25
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

10. 19 28 A group of ten has ten objects. 3. 4. 10 10 11 12 13 14 15 20 16
Independent Practice (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 3. 4. 10 10 11 12 13 14 15 20 16 17 18 19 21 22 23 24 25
total 19 26 27 28
total 28
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

11. 20 40 A group of ten has ten objects. 5. 6. 10 10 20 20 30 total 40
Independent Practice (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 5. 6. 10 10 20 20 30
total 20 40
total 40
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

12. 13 17 A group of ten has ten objects. 7. 8. 10 10 12 11 12 13 11 14 13
Independent Practice (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 7. 8. 10 10 12 11 12 13 11 14 13 15 16 17
total 13
total 17
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

13. 15 27 A group of ten has ten objects. 1. 2. 10 10 11 12 13 14 15 20 21
Periodic Review 1
Name __________________________
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 1. 2. 10 10 11 12 13 14 15 20 21 22 23 24 25
total 15 26 27
total 27
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

14. 14 30 A group of ten has ten objects. 3. 4. 10 10 20 11 12 13 14 30
Periodic Review 1 (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 3. 4. 10 10 20 11 12 13 14 30
total 14
total 30
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

15. 17 29 A group of ten has ten objects. 1. 2. 10 10 11 12 13 14 15 20 16
Periodic Review 2
Name __________________________
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 1. 2. 10 10 11 12 13 14 15 20 16 17 21 22 23 24 25
total 17 26 27 28 29
total 29
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

16. 20 16 A group of ten has ten objects. 3. 4. 10 10 10 20 20 11 13 12
Periodic Review 2 (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 3. 4. 10 10 10 20 20 11 13 12
total 20 15 16 14
total 16
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

17. 10 23 A group of ten has ten objects. 1. 2. 10 10 20 total 21 22 23
Periodic Review 3
Name __________________________
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 1. 2. 10 10 20
total 10 21 22 23
total 23
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.

18. 27 30 A group of ten has ten objects. 3. 4. 10 10 20 20 21 22 23 24 25
Periodic Review 3 (continued)
A group of ten has ten objects.
Put objects in groups of ten.
Step #1: Starting on the left, count ten objects and put the objects in a group of ten. (circle)
Step #2: Find the total number of objects by skip counting the groups of ten and counting the remaining objects.
Step #3: Write the total number of objects and read it aloud. 3. 4. 10 10 20 20 21 22 23 24 25 26 27
total 27 30
total 30
DataWORKS Educational Research
(800) •
©2011 All rights reserved.
Comments?
1st Grade Number Sense 1.4
Count and group objects in ones and tens (e.g., three groups of 10 and 4 equals 34, or ).
Lesson to be used by EDI-trained teachers only.