Add to 20

Add to 20

What is your favorite addition strategy?

Objectives

Students will:

• Review a chart of addition strategies

• Answer opinion based questions to decide which strategy works the best for you

• Work through addition equations using several addition strategies

Poll

How do you feel about adding to 20? (example: 12 + 8 = ?)

• I feel great!

• I think I can do it!

• It's a little tricky!

• I don't understand it!

Open Ended

Think about your answer, and tell me why you chose that answer. What makes it tricky? Why do you think it feels easy to you?

Let's look at the addition strategies we have learned about!

Multiple Select

Which addition strategy do you like the best?

• Counting on

• Doubles

• Doubles +1

• Think 10 to add 9

• In-betweens

Multiple Choice

Using Counting On, solve this equation: 8 + 5 = ?

• 10

• 12

• 13

• 9

Multiple Choice

Using Doubles +1, solve this equation: 9 + 10 = ?

• 17

• 19

• 16

• 18

Multiple Choice

Using Think 10 to Add 9, solve this equation: 7 + 9 = ?

• 12

• 16

• 15

• 14

Multiple Choice

Using Doubles, solve this equation: 6 + 6 = ?

• 14

• 12

• 16

• 17

Multiple Choice

Using In-Betweens, solve this equation: 5 + 7 = ?

• 11

• 13

• 12

• 15

Multiple Select

Is your favorite strategy still the same?

• Yes!

• NO!

Thank you for participating!