Thinking Summary · Step 1
Mastered[object Object]
[Discovery] We will add 49 and 53. First, model the tens of 49: build 4 trays of 10 pastries.
Step 1
Active Step[Discovery] We will add 49 and 53. First, model the tens of 49: build 4 trays of 10 pastries.
Sharing Lab
Distribute items equally among groups