1. Mathematics
CCSS.Math.Content.K.CC.A.1:
Counting to 100 by ones and by tens
For: Kindergarten
By: Hillary Kitchen
Due:Tuesday July 16th 2013

2. Menu
Content
Posttest 1
Exit
Posttest 2 Posttest 3

3. Counting to 100 by Ones!
 To count from 1 to 100,
start at 1 and count to 10:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10

4. Counting to 100 by ones cont.
 After learning 1 through 10, count from 11 to 20:
11, 12, 13, 14, 15, 16, 17, 18, 19, 20

5. Counting to 100 by Ones Cont.
Now it’s easy!
 20, 21, 22, 23, 24, 25, 26, 27, 28, 29
 Example: -21 “Twenty One”
-22 “TwentyTwo”
30, 31, 32, 33, 34, 35, 36, 37, 38, 39
Example: -31 “Thirty One”
-32 “ThirtyTwo”
You can do this all the way up to 100, using the numbers
40, 50, 60, 70, 80, 90.
When you get to 99, the next number is 100!

6. Counting to 100 byTens!
This is just like counting to 10, like we previously learned,
expect you add a zero to show that each group contains
10 numbers.
10 10: “Ten”
20 20: “Twenty”
30 30: “Thirty”
40 40: “Forty”
50 50: “Fifty”
60 60: “Sixty”
70 70: “Seventy”
80 80: “Eighty”
90 90: “Ninety”
100 100: “One Hundred”

7. Posttest 1
 Try it: How many cartoon animals are there?
Correct:
Incorrect:

8. Posttest 2
 How many starts are on this flag?
Correct
Incorrect

9. Posttest 3
 Counting by tens, how hearts are there?
Correct
Incorrect

10. References
 http://www.corestandards.org/Math
 http://www.youtube.com/watch?v=kTK-ZqQg9Rk
 http://www.youtube.com/watch?v=uYRTtwZGwj8
 http://teacherexpress.scholastic.com/product-type/class-decor/counting-1-10-
chart-9780439499699
 http://oceansoffirstgradefun.blogspot.com/2011/07/seabeach-life-numbers-11-
20.html
 http://graphicriver.net/item/9-animal-avatars/2668912
 www.earthlyissues.com
 http://www.flickr.com/photos/areabridges/5105537344/

11. Posttest 1:Yes!There are 9 cartoon animals!

12. Posttest 2: Correct!There are 25 stars on this flag!

13. Posttest 3:YAY!There are 50 hearts! (5 groups of 10)

14. Posttest 1: Sorry, you need to try again.
But first listen to the song one more time, up to 20!
Posttest 2: Opps!Try again.
First, listen to the whole video above!

15. Posttest 3: Sorry, try again!
But first listen to the counting by tens
video again!