Shoutout to Art Shapiro! @agshapiro2
Originally created by Arthur Shapiro and Alex Rose-Henig of American University, this illusion gives the overall impression that all of the movement involved is circular – but it's actually made by dots' straight motion.
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Not Math Club retweeted
Games, puzzles, interesting problems and meaningful projects can provide motivating contexts for learning and practising foundational skills and knowledge.
Here are 6 puzzles we love that invite logical reasoning and arithmetic into a playful space for practice
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Impossible Day Of Week Logic Puzzle
Video
youtu.be/qzvZT2tI7wU
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An NxN square array of numbers has entries in each row and in each column adding to the same value.
Prove it is possible to circle N non-zero entries, one per row and one per column.
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One point simply rotates around the origin. The other four points are moving in a straight line! 😲[bityl.co/NwaO]
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Can you spot the mathematician within this week's #GCHQPuzzle?
Replying to @pickover
Is anyone else thrown off by the mathematician emerging from the cave? Is that where we mathematicians supposedly live? Also, a slip of paper can't have an infinite grid of points with integer coordinates. Fun question, but strange set-up.
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As an added challenge, you can try to use all six numbers and finish so that the target number is in the upper left position. I don't know if it's always possible, but definitely most of the time.
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Replying to @TheMathGuru
Forcing students to use y=mx+b makes them think other forms are wrong. Point-slope form is easier and more useful. When using a tangent line to approximate a function, we care what happens near the tangent point, not x=0. Point-slope form also generalizes to Taylor polynomials.
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Replying to @JayWamsted
These are the Pi Day shirts I made for me and my family this year. Thanks to @AUDaBL for the vinyl cutter and t-shirt press.
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Not Math Club retweeted
Interview Puzzle. What is the sum of all 5 digit numbers using 1, 2, 3, 4, 5 without repetition?
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Can you give us the word we're looking for in this week's #GCHQPuzzle? 🤔
Replying to @TheMathGuru
Also, The Game Believes In You. Not specifically math education, but talks about how kids struggle for a long time with video games but keep at it, but will try a math problem once and then give up, and how to fix this.
amazon.com/Game-Believes-You…
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