Apple Pi


  • No Comments

Contributed By


In this two-lesson unit, students discover the circumference and area formulas based on their own investigations. After measuring the circumference and diameter of several circular objects, they calculate the ratio of circumference to diameter for each object in an attempt to identify the value of pi and the circumference formula. In the second lesson, they use a circle that has been divided into congruent sectors and discover the area formula by using their knowledge of parallelograms. Online links allow students to investigate the history of circle measurement and solve problems using it. All handouts, extensions, and assessment options are included. Less

Learning Registry Activity


    Topics and Grades

    Grade: 6 to 9

    Topics: Measurement & Geometry, Measurement & Tools, Area & Volume

    Resource Pedagogy

    Resource Type/Classification:

    • Teacher Materials

    Tool for: Students