One of the challenges I had this week when students were constructing rectangles and squares using a ruler and set square (drafting triangle) was checking the accuracy of the measurements (sides and angles). I walked around with a ruler and set square checking their drawings.
New Subscribe to the …MathsLinks
Simon Job — eleventh year of teaching maths in a public high school in Western Sydney, Australia.
MathsClass is about teaching and learning in a maths classroom. more→
YouCubed is More Than Just Sloppy About Research | Blog
YouCubed maths research
Skyscraper Templates – Thinking Mathematically
A New Favorite Puzzle – Math with Bad Drawings
algebra.js by nicolewhite