Mathematics·Geometry·procedural
Lines, Rays & Angles
Draw and identify points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines; identify these in two-dimensional figures
Suggested ages 9–10
Learning journey
Your child is learning to measure and work with angles using protractors, classify shapes by their properties, and understand transformations like reflections and translations while exploring how angles relate to each other.
Evidence of understanding
- Draw a pair of perpendicular lines and a pair of parallel lines
- Identify all pairs of parallel sides in a trapezoid
- Mark a right angle, an acute angle, and an obtuse angle in a given figure
Assessment prompt
If Lines, Rays & Angles is given a piece of paper and a ruler, can they draw a line segment, mark a point, and then draw another line through that point that runs perfectly parallel to the first?
Standards alignment
No external standards are linked to this topic.