Tot’s geometry lesson, perhaps

The crossword question asks for a possible description of a tot’s geometry lesson, which can be answered with the word “SHAPES.” Geometry is the branch of mathematics that deals with the study of shapes, sizes, positions, and measurements of various figures in a 2D or 3D space. As a child learns about geometry, they are introduced to shapes such as circles, squares, triangles, rectangles, and more. They learn about the properties of these shapes, such as their sides, angles, and vertices. Therefore, a “tot’s geometry lesson” is likely focused on learning about shapes, their properties, and how they relate to each other.