Following on from working with surds, the class moved on to looking at indices.
Rather than give/show the class how the laws of indices work, I set this investigation. Continue reading
Following on from working with surds, the class moved on to looking at indices.
Rather than give/show the class how the laws of indices work, I set this investigation. Continue reading
My introduction to surds this year was by setting a problem to my class:
Calculate the exact value of the length of each missing side:
Initially the class knew exactly where to start. Pythagoras. Great. The problem arose when calculating the length of the hypotenuse of the red triangle. The class wanted a calculator. This led to a discussion about exact values and accuracy.
Then I set the class the challenge of drawing the Spiral of Theodorus and to calculate the hypotenuse of each triangle and also to calculate the area of each triangle. Continue reading
I want to share a few different activities that I use with pupils when working on factors and multiples.