# Perimeter and Circumference

Learn and practice finding perimeter of figures & circumference of circles with interactive resources from GeoGebra.

## Upper Elementary

GRADES 4-5

### Formula for Perimeter

Use models to develop the relationship between the total distance around a figure and the formula for perimeter; find perimeter using the formula in number and word problems.

### Perimeter

Determine perimeter using concrete models, nonstandard units, and standard units in number and word problems.

## Middle School

GRADES 6-8

### Pi as a Relationship between Diameter and Circumference

Investigate and determine the relationship between the diameter and the circumference of a circle and the value of pi; calculate the circumference of a circle.

### Related Topics

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