Zhi Chao and Soh Fan

1 comment:

  1. Clear explanation and using terms that are relevant (e.g. expand) to describe the steps.

    It is also a good way to colour the polygons to direct our attention when following the explanation.

    However, I think you are following a 'different' script. What I mean is,
    in the clip, the steps describe (m+2)(m+5) is to 'open up' m+2 first, in order to get m(m+5)+2(m+5) whereas
    on the paper, it 'opens' up 'm+5' first m(m+2) + 5(m+2)

    Hence, what we 'hear' does not match with what we 'see'.

    Get what I mean?