The circle is a very common but interesting shape, with a vast array of properties. Circles are used in many ways and in numerous places to create a host of mathematical designs. They are found in art, social studies, science, math, on buildings, and even on our bodies. We learn about the “family circle,” the equator as an imaginary circle, and Saturn’s circle. No matter where it’s found, the circle is the same - a closed figure with no visible beginning or ending.
The World of Circles is a unit designed for students from Kindergarten through Grade 4. It contains activities and ideas to assist in developing practical knowledge and awareness in understanding the circle’s properties and functions in Mathematics.
The unit is planned for five class sessions, but can be extended to cover a longer period. Lessons include: What is a Circle, Round and Round We Go, Fun With Circles, Area of a Circle, To What Degree. The unit wraps up with a Final Project.