nnnnn Here 5^2 – 2^2 = 25 – 4 = 21nnnnnnnnnnnnnnnnnnnnNow rearrange the leftover dots barring the four dots as
nnnnnnnnnnnnnnnnnnnnnHere, 5^2 – 2^2 = (5+2) (5-2)
= (7) (3)
= 21 Therefore, A^2 – B^2 = (A+B)(A - B)The illustrations given in this section are not exhaustive. As the title revels, it is a
“Creative SEction” and therefore new ideas for paper folding may always emerge
when the user aims for creative ways of teaching mathematical concepts to children
with visual impairment.
We hope the learning of this package has helped you to become
more confident in teaching mathematics to children with visual
impairment.