With the Thinking and Calculating training workbooks, children can practice additionally—whether at school or at home. All important content from the school year is reviewed and reinforced sustainably. The "I can do this" pages help children check what they already do well and what they still need to work on. A detachable answer booklet allows for independent checking of results. Once a page is completed, children can peel off a corresponding sticker from the sticker sheet and place it in the appropriate field on the back cover flap.