GCSE Secondary Maths Age 13-17 - Ratio, Proportion & Rates of Change: Direct Proportionality - Explained

The video tutorial addresses a common misconception about proportional relationships. Mary incorrectly claims that doubling N results in D being multiplied by 6. The correct explanation shows that when N is doubled, D should be multiplied by 8, as N is cubed. The video emphasizes the importance of understanding and reasoning in solving such problems, highlighting that the question was straightforward and required only basic reasoning skills.

What new insight or understanding did you gain from this video?

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