The document describes a math book about penguins where the reader groups penguins in different ways to write number sentences, types number sentences based on penguin pictures, and completes a counting pattern by moving penguin images. The reader is asked to group and add penguins to write number sentences like 7+3=10 and 5+5=10, type number sentences based on penguin pictures like 5-3=2, and complete a counting pattern by moving penguin images to their correct place.