Shape, Space, and Symmetry · Geometry

Lines and Angles

Identifying types of angles and the relationship between parallel and perpendicular lines.

Key Questions

  1. 1How can we use a right angle as a benchmark to estimate the size of other angles?
  2. 2What happens to the relationship between two lines if they are both perpendicular to a third line?
  3. 3Where in our classroom can we find examples of obtuse angles and why were they designed that way?

NCCA Curriculum Specifications

NCCA: Primary - Shape and SpaceNCCA: Primary - Angles
Class/Year: 4th Class
Subject: Mastering Mathematical Thinking: 4th Class
Unit: Shape, Space, and Symmetry
Period: Geometry

Suggested Methodologies

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