Lines of Symmetry in Shapes
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Objective
I can identify lines of symmetry in two-dimensional shapes.
Part 1 of 4
Warm-up video
mathantics · 11:45Vetted channel
We don't generate video — this one is by mathantics on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
If you cut an image in half along a line, the two halves will be mirror images of each other; this is called line symmetry.
- 2
An image that has symmetry is called symmetrical, and an image that does not have symmetry is called asymmetrical.
- 3
Rotational symmetry means that if you rotate a shape the right amount, the rotated shape will match the original shape.
Part 3 of 4
Practice
3 questions
Draw a square. How many lines of symmetry does it have? Draw them.
Which of the following shapes does NOT have a vertical line of symmetry?
Part 4 of 4
Exit ticket
Quick comprehension check
“Draw a square. Draw all of its lines of symmetry.”
Sample answer included in the free materials
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