- p. 3Parallel or Perpendicular?. Look at each pair of segments, then circle parallel, perpendicular, or neither.
- p. 4Draw Parallel and Perpendicular. Draw a segment that starts at the big dot and follows the rule in each box.
- p. 5Right Angles and Parallel Sides. Mark each right angle with a small square, then fill in both boxes.
- p. 6Could It Be?. Circle yes or no for each question, and if yes, draw one on the dots.
- p. 7Lines on a Map. Use the street map to answer each question.
- p. 14Mixed Review. Read each problem, then solve.
The standard
Identify perpendicular line segments, parallel line segments, and right angles, identify these in polygons, and solve problems involving parallel line segments, perpendicular line segments, and right angles.
Element 3.GSR.6.1 of Georgia's K-12 Mathematics Standards (2021, effective SY2023-24), in the Geometric & Spatial Reasoning strand. It sits under standard 3.GSR.6: Identify the attributes of polygons, including parallel segments, perpendicular segments, right angles, and symmetry.
What students practice
Students sort pairs of segments on dot grids as parallel, perpendicular, or neither, draw their own from a dot, mark every right angle in a polygon and count its parallel sides, decide whether a shape could exist, and find square corners on a street map.
Where to find it
Think: go over 2 and up 1 to copy a segment that goes over 2 and up 1.