Real world objects and situations help students practice solving word problems by choosing from among three possible addition equations
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
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