Good math students usually finish their tasks much faster than their weaker peers. However, they not only need additional practice material but also challenging tasks that they can approach strategically and that are enjoyable for them. This is exactly what the collection of exercises for 2nd grade provides. The children solve puzzles with geometric pieces, explore fun mirror images, or tackle a dog riddle. They experiment, proceed systematically, use sketches and tables, or incorporate colors. The volume includes a detailed solution section that documents the result, the promising strategy, and the solution path from a child's perspective for each task. This way, even the good students are meaningfully challenged.