Simple text, photographs, and illustrations introduce concepts of size such as length, height, weight, and volume, including measuring with standard and nonstandard units.

Simple text, photographs, and illustrations introduce two- and three-dimensional shapes, including circles, squares, quadrilaterals, cylinders, and spheres, and give examples of shapes in the real world.

Simple text photographs, and illustrations introduce mathematical patterns, including how to identify patterns, create patterns, and predict what comes next in a given pattern.