Description:
This topic covers the concept of finding circumference of a
circle.
Adaptive Learning Progression: First answers use pi, then we use the fraction 22/7 for pi, then we use 3.14 for pi. 
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Sample Levels (out of 5)
Find the circumference. Use 3.14 as an approximation for π.
 
Find the circumference. Use 3.14 as an approximation for π.
 
Find the circumference. Use 3.14 as an approximation for π.
