Shape, Space, and Geometric Reasoning · Geometry

Measuring and Constructing Angles

Using protractors to measure acute, obtuse, and reflex angles.

Key Questions

  1. 1How does the rotation of a line create an angle?
  2. 2Why do we use degrees as the unit of measurement for rotation instead of length?
  3. 3How can we calculate an unknown angle on a straight line without using a protractor?

NCCA Curriculum Specifications

NCCA: Primary - Shape and SpaceNCCA: Primary - Angles
Class/Year: 5th Year
Subject: Mathematical Mastery: Exploring Patterns and Logic
Unit: Shape, Space, and Geometric Reasoning
Period: Geometry

Suggested Methodologies

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