Different senses give different information. Eating a variety of healthy foods and getting enough exercise and rest help people to stay healthy. People are both alike and different in many ways. Sometimes, in sharing and measuring there is a need to use numbers between whole numbers. It is possible to estimate quantities without knowing them exactly.
Simple graphs can help to tell about observations.
Shapes, such as circles, squares, and triangles, can be used to describe many things seen. Things in nature have very different sizes, weights, ages, and speeds. Students can use whole numbers in identifying, measuring, and describing things and experiences. Readily give the sums and differences of single-digit numbers in familiar contexts. Give rough estimates to problems.