1. Playing with Polygons
EXPLORESuggested Learning Intentions
- To develop vocabulary about the angle and side properties of triangles and quadrilaterals
- To classify triangles according to their side and angle properties and describe quadrilaterals
Sample Success Criteria
- I can describe a polygon using its properties
- I can use side and angle properties of triangles and quadrilaterals to describe their differences and similarities
- I can identify polygons and non-polygons within a two-dimensional image
- I can explain and justify my thinking using manipulatives
2. Assemble your Angles
EXPLORESuggested Learning Intentions
- To investigate the way that angles in shapes relate to each other
- To manipulate angles to improve understanding of angle properties in polygons
Sample Success Criteria
- I can estimate the size of an angle when turning an object
- I can identify polygons and angles made when lines cross
- I can prove the sum of the internal angles in a triangle or quadrilateral
- I can use a range of manipulatives to explain and justify my solutions
3. Dancing Between the Lines
EXPLORESuggested Learning Intentions
- To explore the properties of angles where a transversal crosses parallel lines
- To make connections between line and angle forms in artwork and line and angle properties in mathematics
- To use properties of lines and angles to discuss visual elements in artworks
Sample Success Criteria
- I can identify angles using mathematical language used in relation to a transversal crossing parallel lines
- I can use technology to create visual representations of angle problems
- I can identify parallel lines in two-dimensional images
4. Untangle Polygons and Angles
EXPLORESuggested Learning Intentions
- To develop logical reasoning to solve problems involving lines, angles, and polygons
- To articulate mathematical reasoning through providing justifications of steps in problem solving
- To use visual representations to support problem solving
Sample Success Criteria
- I can provide justifications for mathematical reasoning when problem solving
- I can use a range of manipulatives to explain and justify my thinking
- I can match justifications to a visual representation of a problem
- I can reference mathematical facts when proving an answer in problem solving