Squares from diagonals

Take a look at the video showing squares and their diagonals...
Exploring and noticing Working systematically Conjecturing and generalising Visualising and representing Reasoning, convincing and proving
Being curious Being resourceful Being resilient Being collaborative

Problem

 

This resource is part of "Dotty Grids - Drawing Polygons"



I wonder what maths we can do on dotty paper...

This video might give you some ideas.



Play with the dotted grid below, or print out some dotty paper.