This is a book formatted for students to write and collect different types of addition and subtraction story problems. Each page includes a situation equation with a variable and a corresponding sentence frame. All are one-step story problems. Situation equations include unknown total (sum/difference), unknown start, and unknown partner (addend/subtrahend). Story problem types include change plus, change minus, and collection problems.
This was used with a second grade class, but would work well with grades 1-3, native- and new-to-English speakers alike.