text: # Search by Topic
  
  #### Resources tagged with Visualising similar to Children's Mathematical Writing:
  
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  ### Dodecamagic
  
  ##### Stage: 2 Challenge Level:
  
  Here you see the front and back views of a dodecahedron. Each vertex has been numbered so that the numbers around each pentagonal face add up to 65. Can you find all the missing numbers?
  
  ### Odd Squares
  
  ##### Stage: 2 Challenge Level:
  
  Think of a number, square it and subtract your starting number. Is the number youâ€™re left with odd or even? How do the images help to explain this?
  
  ### Move a Match
  
  ##### Stage: 2 Challenge Level:
  
  How can you arrange these 10 matches in four piles so that when you move one match from three of the piles into the fourth, you end up with the same arrangement?
  
  ### Knight's Swap
  
  ##### Stage: 2 Challenge Level:
  
  Swap the stars with the moons, using only knights' moves (as on a chess board). What is the smallest number of moves possible?
  
  ### World of Tan 21 - Almost There Now
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outlines of the lobster, yacht and cyclist?
  
  ### World of Tan 20 - Fractions
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outlines of the chairs?
  
  ### World of Tan 24 - Clocks
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outlines of these clocks?
  
  ### Putting Two and Two Together
  
  ##### Stage: 2 Challenge Level:
  
  In how many ways can you fit two of these yellow triangles together? Can you predict the number of ways two blue triangles can be fitted together?
  
  ### Midpoint Triangle
  
  ##### Stage: 2 Challenge Level:
  
  Can you cut up a square in the way shown and make the pieces into a triangle?
  
  ### Regular Rings 2
  
  ##### Stage: 2 Challenge Level:
  
  What shape is made when you fold using this crease pattern? Can you make a ring design?
  
  ### World of Tan 22 - an Appealing Stroll
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of the child walking home from school?
  
  ### Folding Flowers 2
  
  ##### Stage: 2 Challenge Level:
  
  Make a flower design using the same shape made out of different sizes of paper.
  
  ### Painting Possibilities
  
  ##### Stage: 2 Challenge Level:
  
  This task, written for the National Young Mathematicians' Award 2016, involves open-topped boxes made with interlocking cubes. Explore the number of units of paint that are needed to cover the boxes. . . .
  
  ### Making Tangrams
  
  ##### Stage: 2 Challenge Level:
  
  Here's a simple way to make a Tangram without any measuring or ruling lines.
  
  ### Little Boxes
  
  ##### Stage: 2 Challenge Level:
  
  How many different cuboids can you make when you use four CDs or DVDs? How about using five, then six?
  
  ### Folding Flowers 1
  
  ##### Stage: 2 Challenge Level:
  
  Can you visualise what shape this piece of paper will make when it is folded?
  
  ### World of Tan 1 - Granma T
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of Granma T?
  
  ### Cubes Within Cubes
  
  ##### Stage: 2 and 3 Challenge Level:
  
  We start with one yellow cube and build around it to make a 3x3x3 cube with red cubes. Then we build around that red cube with blue cubes and so on. How many cubes of each colour have we used?
  
  ### World of Tan 3 - Mai Ling
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of Mai Ling?
  
  ### World of Tan 19 - Working Men
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of this shape. How would you describe it?
  
  ### Tessellate the Triominoes
  
  ##### Stage: 1 Challenge Level:
  
  What happens when you try and fit the triomino pieces into these two grids?
  
  ### World of Tan 8 - Sports Car
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of this sports car?
  
  ### World of Tan 25 - Pentominoes
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outlines of these people?
  
  ### World of Tan 13 - A Storm in a Tea Cup
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of these convex shapes?
  
  ### World of Tan 9 - Animals
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of this goat and giraffe?
  
  ##### Stage: 2 Challenge Level:
  
  How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?
  
  ### World of Tan 27 - Sharing
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of Little Fung at the table?
  
  ### World of Tan 28 - Concentrating on Coordinates
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of Little Ming playing the board game?
  
  ### World of Tan 29 - the Telephone
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of this telephone?
  
  ### World of Tan 6 - Junk
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of this junk?
  
  ### Map Folding
  
  ##### Stage: 2 Challenge Level:
  
  Take a rectangle of paper and fold it in half, and half again, to make four smaller rectangles. How many different ways can you fold it up?
  
  ### World of Tan 11 - the Past, Present and Future
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of the telescope and microscope?
  
  ### World of Tan 4 - Monday Morning
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of Wai Ping, Wah Ming and Chi Wing?
  
  ### Cover the Camel
  
  ##### Stage: 1 Challenge Level:
  
  Can you cover the camel with these pieces?
  
  ### World of Tan 12 - All in a Fluff
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of these rabbits?
  
  ### World of Tan 7 - Gat Marn
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of this plaque design?
  
  ### Nine-pin Triangles
  
  ##### Stage: 2 Challenge Level:
  
  How many different triangles can you make on a circular pegboard that has nine pegs?
  
  ### World of Tan 5 - Rocket
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of the rocket?
  
  ### Making Maths: Rolypoly
  
  ##### Stage: 1 and 2 Challenge Level:
  
  Paint a stripe on a cardboard roll. Can you predict what will happen when it is rolled across a sheet of paper?
  
  ### World of Tan 14 - Celebrations
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of Little Ming and Little Fung dancing?
  
  ### More Pebbles
  
  ##### Stage: 2 and 3 Challenge Level:
  
  Have a go at this 3D extension to the Pebbles problem.
  
  ### World of Tan 16 - Time Flies
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outlines of the candle and sundial?
  
  ### World of Tan 18 - Soup
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outlines of Mai Ling and Chi Wing?
  
  ### A City of Towers
  
  ##### Stage: 1 Challenge Level:
  
  In this town, houses are built with one room for each person. There are some families of seven people living in the town. In how many different ways can they build their houses?
  
  ### Picture a Pyramid ...
  
  ##### Stage: 2 Challenge Level:
  
  Imagine a pyramid which is built in square layers of small cubes. If we number the cubes from the top, starting with 1, can you picture which cubes are directly below this first cube?
  
  ### World of Tan 26 - Old Chestnut
  
  ##### Stage: 2 Challenge Level:
  
  Can you fit the tangram pieces into the outline of this brazier for roasting chestnuts?
  
  ### Tetrahedron Faces
  
  ##### Stage: 2 Challenge Level:
  
  One face of a regular tetrahedron is painted blue and each of the remaining faces are painted using one of the colours red, green or yellow. How many different possibilities are there?
  
  ### Celtic Knot
  
  ##### Stage: 2 Challenge Level:
  
  Building up a simple Celtic knot. Try the interactivity or download the cards or have a go on squared paper.
  
  ### 3D Stacks
  
  ##### Stage: 2 and 3 Challenge Level:
  
  Can you find a way of representing these arrangements of balls?