Select various cube models that show the same sum. Then, students are shown a model of addition and have to find another model with the same sum. Finally, students select the correct addition equation that matches a model
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
D. Sort items by shape and color to create addition models. Identify whether the sums are the same or different in two equations
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