Translating and reflecting shapes
Draw and translate simple shapes on the coordinate plane; reflect shapes in the axes
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Teaching Table
Set out your lesson
“If your child draws a triangle at coordinates (1, 2), (3, 2), and (2, 4) on a grid, can they then reflect it across the x-axis and tell you the new coordinates of each corner?”
Full guide and materials
- Activity. Draw and translate simple shapes on the coordinate plane; reflect shapes in the axes
What to notice. Translate a triangle 3 units right and 2 units down on a coordinate grid and state the new coordinates • Reflect a shape in the x-axis and list the coordinates of the reflected vertices • Explain how translation changes coordinates (add/subtract) while reflection changes the sign of one coordinate
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If your child draws a triangle at coordinates (1, 2), (3, 2), and (2, 4) on a grid, can they then reflect it across the x-axis and tell you the new coordinates of each corner?
Draw and translate simple shapes on the coordinate plane; reflect shapes in the axes
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Check understanding
- Translate a triangle 3 units right and 2 units down on a coordinate grid and state the new coordinates
- Reflect a shape in the x-axis and list the coordinates of the reflected vertices
- Explain how translation changes coordinates (add/subtract) while reflection changes the sign of one coordinate
“If your child draws a triangle at coordinates (1, 2), (3, 2), and (2, 4) on a grid, can they then reflect it across the x-axis and tell you the new coordinates of each corner?”
Curriculum record
- Type
- Procedural
- Subject
- Mathematics
- Domain
- Geometry
- Age range
- Ages 10–11