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# Circles

Strand: Shape and Space (Measurement)
Outcome: 1

## Curriculum Focus

This sample targets the following changes in the curriculum:

• The General Outcome focuses on using direct or indirect measurement to solve problems, whereas the previous mathematics curriculum focused on solving problems involving the properties of circles and their connections with angles.
• The Specific Outcome is very similar to the previous mathematics curriculum, but also includes the construction of circles, the sum of the central angles of a circle and specific reference to pi.

Circles addresses the following outcomes from the Program of Studies:

Strand: Shape and Space (Measurement)
Specific Outcomes:
 1 Demonstrate an understanding of circles by: describing the relationships among radius, diameter and circumference relating circumference to pi determining the sum of the central angles constructing circles with a given radius or diameter solving problems involving the radii, diameters and circumferences of circles.

## What is a Planning Guide?

Planning Guides are a tool for teachers to use in designing instruction and assessment that focuses on developing and deepening students' understanding of mathematical concepts. This tool is based on the process outlined in Understanding by Design, by Grant Wiggins and Jay McTighe.