1
Identify points, lines, rays and segments
Recognize and name basic geometric elements accurately.
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Parallel and Intersecting Lines
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2
Classify angle types
Classify acute, right, obtuse, straight and reflex angles.
3
Measure and draw angles
Use a protractor to measure and draw angles accurately.
4
Identify adjacent and vertically opposite angles
Recognize angle pairs formed by intersecting lines.
5
Use vertically opposite angle equality
Find missing angles using equality of vertically opposite angles.
6
Use linear pair relationships
Find missing angles where two adjacent angles form a straight angle.
7
Identify corresponding angles
Recognize corresponding angles when a transversal cuts parallel lines.
8
Identify alternate interior angles
Recognize alternate interior angles in parallel-line diagrams.
9
Use parallel-line angle relationships
Find missing angles using corresponding and alternate angle properties.
10
Justify angle relationships
Give short reasons for angle conclusions in line diagrams.
11
Spot false parallel-line reasoning
Identify common mistakes when parallel-line conditions are not given.
12
Apply line-angle facts in patterns
Use line and angle relationships in tiled, folded or patterned figures.
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