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Posts tagged with thinking mathematically

Thinking Mathematically!


What a mental adventure mathematicians have! Questioning, visualising, exploring, reasoning, justifying, thinking, questioning, problem-solving, representing and modelling! These are all aspects of thinking mathematically. Click on this link for more information and examples from nrich maths.

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Think Cool Mathematics


James Tanton’s Math site has some great videos to help our growing mathematicians. Here you will find some essays illustrating astounding tidbits of mathematical delight. And here are some purely visual puzzles to surprise. The true joy in mathematics, the true hook that compels mathematicians to devote their careers to the subject, comes from a […]

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10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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