Lesson 23: Symmetry
Lesson 23 Learning Objectives:
Identify shapes that have lines of symmetry
Identify lines of symmetry in shapes
Draw shapes with a line of symmetry
Embedded Files
Reflect:
*Reflect in your math journal. Draw, create or write to share your thinking. See Lesson guide 23 for more reflection questions, real life anchoring, playful explorations and creative invitations.
If a square has 2 lines of symmetry, could it have 4? How do you know?
Can a shape be symmetrical if one side is bigger than the other?
How are shapes balanced? How are they not?
How can we see symmetry not just in objects, but in feelings, friendships, routines?
Math Talk:
Have a conversation about this image. Be curious. Be creative. Can you see in different ways?
What shapes, colours and patterns do you notice? How do you see? What is the same one each side? What is different? What does this mural say about balance, symmetry and assymmetry?
Mural in Jasper, BC, by Mackenzie Brown (a.k.a. Kamamak), a First Nations Cree artist from the Sturgeon Lake Cree Nation
“The mural is really a story of balance,” Brown said. “On one side, we have the butterfly, and then on the other side, we have the moth. And actually in our Cree creation stories, we believe that the moth gave up its colours to make the rainbow and that butterflies had the ability of going through darkness and coming out bright and beautiful. So, that’s why I used the colours that I did.” https://www.fitzhugh.ca/arts-and-culture/uplift-beautifies-jasper-with-swath-of-new-murals-8866023
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