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Simon Young Profile picture
Simon Young
@MrYoungMaths
Secondary #Maths teacher since 2013. GCSE and IB. Lover of useless facts and cryptic crosswords. Owner of too many white shirts.
Jul 11, 2020 • 15 tweets • 5 min read
Have you ever wondered what the percentages mean in those road signs about an upcoming gradient change? I know I have! Maths teachers, here is what I discovered... #mathschat @standupmaths Image You might have some guesses about what the percentages mean. Does it mean the percentage change of the gradient? Is it the percentage of an angle? Is it to do with how you should adjust your speed? Alas, none of the above. Image