Grade 2 Addition Strategy Masters
Today we will become addition experts! Learning to add numbers in different ways Building our math confidence together
Our Learning Goals - I Can Statements
I can add two one-digit numbers using different strategies I can use counting on, making ten, and doubles I can explain how I found my answer I can check my work in two different ways
Addition Story Problem Challenge
Alice has 7 apples Bob has 5 apples How many apples do they have altogether? Turn and talk: How can we solve this?
Strategy 1: Counting On
Start with the bigger number Count up from there Example: 7 + 5 Start at 7, count: 8, 9, 10, 11, 12
Strategy 2: Make Ten
Break apart numbers to make 10 first Example: 7 + 5 Think: 7 + 3 = 10 Then: 10 + 2 = 12
Strategy 3: Doubles and Near Doubles
Use doubles facts you already know Example: 6 + 7 Think: 6 + 6 = 12 So 6 + 7 = 12 + 1 = 13
Practice Time - Show Your Strategy!
Try these problems: 9 + 4, 6 + 8, 7 + 6 Choose your favorite strategy Show your work with pictures or numbers Share your thinking with a partner
Reflection and Success
"I can solve addition problems in multiple ways and explain my thinking!" Success Criteria Check: ✓ Did I solve problems correctly? ✓ Did I explain my strategy? ✓ Did I check my work?