Addition Within 20

Learning tasks

A) What is Addition?
1) Adding Numbers Within 10	Ex 1 Ex 2 Ex 3 Ex 4 Ex 5 Ex 6 Ex 7 Ex 8 Ex 9 Ex 10 Ex 11
2) Adding Circles Within 20	Ex 12 Ex 13 Ex 14 Ex 15 Ex 16 Ex 17 Ex 18 Ex 19 Ex 20
3) Adding Cubes Within 20	Ex 21 Ex 22 Ex 23 Ex 24 Ex 25 Ex 26 Ex 27
4) Adding Multiple Numbers	Ex 28 Ex 29 Ex 30 Ex 31 Ex 32 Ex 33
5) Breaking Down Numbers	Ex 34 Ex 35 Ex 36 Ex 37 Ex 38 Ex 39 Ex 40
B) Adding on the Number Line
6) Adding Numbers using the Number Line	Ex 41 Ex 42 Ex 43 Ex 44 Ex 45 Ex 46
C) The "Make a Ten" Strategy
7) Breaking Down Numbers to Make Ten	Ex 47 Ex 48 Ex 49 Ex 50 Ex 51 Ex 52 Ex 53
8) Making 10 after Breaking Down Numbers	Ex 54 Ex 55 Ex 56 Ex 57 Ex 58 Ex 59 Ex 60 Ex 61
9) Adding Numbers Within 20	Ex 62 Ex 63 Ex 64 Ex 65 Ex 66 Ex 67 Ex 68 Ex 69 Ex 70

Lesson Summary
Text book

Exercises Correction
A) What is Addition?
    1) Adding Numbers Within 10 Ex 1 Ex 2 Ex 3 Ex 4 Ex 5 Ex 6 Ex 7 Ex 8 Ex 9 Ex 10 Ex 11
    2) Adding Circles Within 20 Ex 12 Ex 13 Ex 14 Ex 15 Ex 16 Ex 17 Ex 18 Ex 19 Ex 20
    3) Adding Cubes Within 20 Ex 21 Ex 22 Ex 23 Ex 24 Ex 25 Ex 26 Ex 27
    4) Adding Multiple Numbers Ex 28 Ex 29 Ex 30 Ex 31 Ex 32 Ex 33
    5) Breaking Down Numbers Ex 34 Ex 35 Ex 36 Ex 37 Ex 38 Ex 39 Ex 40
B) Adding on the Number Line
    6) Adding Numbers using the Number Line Ex 41 Ex 42 Ex 43 Ex 44 Ex 45 Ex 46
C) The "Make a Ten" Strategy
    7) Breaking Down Numbers to Make Ten Ex 47 Ex 48 Ex 49 Ex 50 Ex 51 Ex 52 Ex 53
    8) Making 10 after Breaking Down Numbers Ex 54 Ex 55 Ex 56 Ex 57 Ex 58 Ex 59 Ex 60 Ex 61
    9) Adding Numbers Within 20 Ex 62 Ex 63 Ex 64 Ex 65 Ex 66 Ex 67 Ex 68 Ex 69 Ex 70