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Angles and Triangles

Strand: Shape and Space (Measurement)
Outcome: 1

Strand: Shape and Space (3-D Objects and 2-D Shapes)
Outcomes: 4 and 5

Curriculum Focus

The changes to the curriculum targeted by this sample include:

• The general outcome focuses on describing the characteristics of 3-D objects and 2-D shapes, and analyzing the relationships among them, whereas the previous program of studies focused on describing, classifying, constructing and relating 3-D objects and 2-D shapes, using mathematical vocabulary.
• The specific outcomes focus on constructing and comparing different types of triangles as well as describing and comparing the sides and angles of regular and irregular polygons. The previous program of studies included constructing and classifying triangles according to the measure of their sides in Grade 5 and according to the measure of their angles in Grade 6. Regular polygons were sorted according to the number of lines of symmetry in Grade 6.

Angles and Triangles addresses the following outcomes from the Program of Studies:

Strand:	Shape and Space (Measurement)
Specific Outcomes:	1. Demonstrate an understanding of angles by: identifying examples of angles in the environment classifying angles according to their measure estimating the measure of angles, using 45°, 90° and 180° as reference angles determining angle measures in degrees drawing and labelling angles when the measure is specified.
Strand:	Shape and Space (3-D Objects and 2-D Shapes)
Specific Outcomes:	4. Construct and compare triangles, including: scalene isosceles equilateral right obtuse acute in different orientations. 5. Describe and compare the sides and angles of regular and irregular polygons.

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.

The following steps will help you through the Planning Guide:

• Step 1: Identify Outcomes to Address
• Step 2: Determine Evidence of Student Learning
• Step 3: Plan for Instruction
• Step 4: Assess Student Learning
• Step 5: Follow-up on Assessment

See Bibliography for reference information.