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“Everything is so linear, but this makes me think
diagonally
!” ~ a student describing Byrdseed.TV
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Quadrilaterals Lessons
What’s In My Brain: Trapezoids or Not?
Which are trapezoids and which are not?
Gr 3-5
Grouping Quadrilaterals In A Hierarchy
Can we classify quadrilaterals like we classify living things?
Gr 3-5
