Catriona Shearer

@Cshearer41

Maths teacher and fan of geometric puzzles.

Vrijeme pridruživanja: veljača 2018.
388 fotografija ili videozapisa Fotografije i videozapisi

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  1. Prikvačeni tweet
    14. svi 2019.

    Looking for puzzles? I have lots!Here are 3 ways to find them: A) scroll back through my tweets. B) I collect screenshots here: C) In actual real life book form (UK) or search in your local amazon site.

    86 proslijeđenih tweetova 291 korisnik označava da mu se sviđa
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  2. prije 12 sati

    MENACE has just got a mention 😄

    1 reply 2 korisnika označavaju da im se sviđa
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  3. prije 12 sati

    Time for a mathsy Monday evening - I’m going to a talk by 😁

    16 korisnika označava da im se sviđa
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  4. 1. velj

    4 squares. What’s the shaded area?

    25 replies 54 proslijeđena tweeta 223 korisnika označavaju da im se sviđa
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  5. 30. sij

    The two red arcs are the same length. What fraction of the semicircle is shaded?

    30 replies 67 proslijeđenih tweetova 214 korisnika označava da im se sviđa
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  6. proslijedio/la je Tweet
    29. sij

    Three houses, made of a square and an equilateral triangle, are inscribed by a circle. If the radius of the circle is 2, what is the combined area of the three houses?

    7 replies 7 proslijeđenih tweetova 28 korisnika označava da im se sviđa
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  7. 23. sij

    With thanks to my geometry muse for sharing a puzzle at which inspired this one.

    1 proslijeđeni tweet 5 korisnika označava da im se sviđa
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  8. 23. sij

    The three shaded triangles are isosceles. What’s the missing angle?

    35 replies 66 proslijeđenih tweetova 201 korisnik označava da mu se sviđa
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  9. proslijedio/la je Tweet
    22. sij

    Anyone who has my calendar and is stuck on today's puzzle (January 22), there's discussion in this thread: Fun to see how different people have approached the problem!

    What’s the area of the toppled square?
    5 replies 9 proslijeđenih tweetova 37 korisnika označava da im se sviđa
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  10. proslijedio/la je Tweet
    17. sij

    from a pupil via a colleague. Two triangles inside a square. What is the shaded area?

    10 replies 29 proslijeđenih tweetova 112 korisnika označava da im se sviđa
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  11. 16. sij

    The square and rectangle intersect at the centre of the semicircle. What’s the total yellow area?

    27 replies 56 proslijeđenih tweetova 168 korisnika označava da im se sviđa
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  12. proslijedio/la je Tweet
    13. sij

    I remain a big fan of

    1 reply 23 proslijeđena tweeta 69 korisnika označava da im se sviđa
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  13. 12. sij

    The three small squares each have area 4. What’s the total shaded area?

    30 replies 50 proslijeđenih tweetova 178 korisnika označava da im se sviđa
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  14. 10. sij

    Heated debate has broken out in the office. Is a parallelogram a special trapezium? Or can a trapezium only have 1 pair of parallel sides? [NB we're talking in the UK - I know North Americans would probably call this a trapezoid].

    6 proslijeđenih tweetova 65 korisnika označava da im se sviđa
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  15. 9. sij

    Very excited that is coming to Saffron Walden, of all places. In fact, I got so excited that I agreed to speak! Get Saturday 2nd May in your diaries everybody 😄

    Drumroll please 🥁 🥁 🥁 LADIES AND GENTLEMEN... may I have your attention please! speaker, date & venue announcement time! The worlds first EDU EVENT!
    2 proslijeđena tweeta 17 korisnika označava da im se sviđa
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  16. proslijedio/la je Tweet
    9. sij

    15 replies 23 proslijeđena tweeta 69 korisnika označava da im se sviđa
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  17. 7. sij

    a + b is a right angle. What’s the area of the parallelogram?

    65 proslijeđenih tweetova 234 korisnika označavaju da im se sviđa
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  18. 7. sij

    Very excited to own a copy of this calendar, which is full of all kinds of interesting maths, including a few geometry puzzles. What a mammoth effort putting this together must have been - thank you . And even better, it arrived on my birthday! 😁

    7 replies 12 proslijeđenih tweetova 102 korisnika označavaju da im se sviđa
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  19. 5. sij

    Finished reading my first book of 2020! It’s no secret that I’m a massive fan of , but this book is SO GOOD. Lovely stories and there are pictures on every single page (my kind of book). I wish I could go back and give 16-year-old me a copy.

    9 replies 30 proslijeđenih tweetova 194 korisnika označavaju da im se sviđa
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  20. 4. sij

    The areas of the three squares are given. How long is the red line?

    29 replies 56 proslijeđenih tweetova 200 korisnika označava da im se sviđa
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