Students work with two possible ways to reach the same sum by sorting objects by color and shape
A. Identify correct addition sentences to 8
B. Write addition sentences based on a model and see that different combinations of addends can result in the same sum
C. Select models that show the same sum and match a model to the correct equation
E. Observe models and write many addition equations with the same sum
F. Solve simple word problems with the help of a model and learn where to place the plus sign
G. Solve word problems by selecting the addition equation that best represents it