List

Year 7 Visualising and Representing

Your number is...
problem
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Your number is...

Age
7 to 14
Challenge level
filled star empty star empty star
Think of a number and follow the machine's instructions... I know what your number is! Can you explain how I know?
Treasure Hunt
problem
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Treasure Hunt

Age
7 to 14
Challenge level
filled star empty star empty star
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
The Number Jumbler
problem
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The Number Jumbler

Age
7 to 14
Challenge level
filled star empty star empty star
The Number Jumbler can always work out your chosen symbol. Can you work out how?
Number Lines in Disguise
problem
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Number Lines in Disguise

Age
7 to 14
Challenge level
filled star filled star empty star
Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
Remainders
problem
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Remainders

Age
7 to 14
Challenge level
filled star filled star empty star
I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
Square It
problem
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Square It

Age
11 to 16
Challenge level
filled star empty star empty star

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.

Odds and Evens
problem
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Odds and Evens

Age
11 to 14
Challenge level
filled star empty star empty star
Are these games fair? How can you tell?
Mixing Lemonade
problem
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Mixing Lemonade

Age
11 to 14
Challenge level
filled star empty star empty star

Can you work out which drink has the stronger flavour?

Perimeter Expressions
problem
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Perimeter Expressions

Age
11 to 14
Challenge level
filled star empty star empty star
Create some shapes by combining two or more rectangles. What can you say about the areas and perimeters of the shapes you can make?
Sieve of Eratosthenes
problem
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Sieve of Eratosthenes

Age
11 to 14
Challenge level
filled star empty star empty star
Follow this recipe for sieving numbers and see what interesting patterns emerge.
Odds, Evens and More Evens
problem
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Odds, Evens and More Evens

Age
11 to 14
Challenge level
filled star empty star empty star

Alison, Bernard and Charlie have been exploring sequences of odd and even numbers, which raise some intriguing questions...

Hidden Squares
problem
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Hidden Squares

Age
11 to 14
Challenge level
filled star empty star empty star
Can you find the squares hidden on these coordinate grids?
Add to 200
problem
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Add to 200

Age
11 to 14
Challenge level
filled star empty star empty star
By selecting digits for an addition grid, what targets can you make?
Fractions Rectangle
problem
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Fractions Rectangle

Age
11 to 14
Challenge level
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The large rectangle is divided into a series of smaller quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the ten numbered shapes?
Parallelogram It
problem
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Parallelogram It

Age
11 to 16
Challenge level
filled star empty star empty star

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a parallelogram.

Up, down, flying around
game
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Up, down, flying around

Play this game to learn about adding and subtracting positive and negative numbers

Summing Consecutive Numbers
problem
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Summing Consecutive Numbers

Age
11 to 14
Challenge level
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15 = 7 + 8 and 10 = 1 + 2 + 3 + 4. Can you say which numbers can be expressed as the sum of two or more consecutive integers?

Reflecting Squarely
problem
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Reflecting Squarely

Age
11 to 14
Challenge level
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In how many ways can you fit all three pieces together to make shapes with line symmetry?

Shady Symmetry
problem
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Shady Symmetry

Age
11 to 14
Challenge level
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How many different symmetrical shapes can you make by shading triangles or squares?
Picturing Square Numbers
problem
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Picturing Square Numbers

Age
11 to 14
Challenge level
filled star empty star empty star

Square numbers can be represented as the sum of consecutive odd numbers. What is the sum of 1 + 3 + ..... + 149 + 151 + 153?

Number Pyramids
problem
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Number Pyramids

Age
11 to 14
Challenge level
filled star empty star empty star

Try entering different sets of numbers in the number pyramids. How does the total at the top change?

More Number Pyramids
problem
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More Number Pyramids

Age
11 to 14
Challenge level
filled star filled star empty star

When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...

Shear Magic
problem
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Shear Magic

Age
11 to 14
Challenge level
filled star filled star empty star
Explore the area of families of parallelograms and triangles. Can you find rules to work out the areas?
On the Edge
problem
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On the Edge

Age
11 to 14
Challenge level
filled star filled star empty star
If you move the tiles around, can you make squares with different coloured edges?
Squares in rectangles
problem
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Squares in rectangles

Age
11 to 14
Challenge level
filled star filled star empty star
A 2 by 3 rectangle contains 8 squares and a 3 by 4 rectangle contains 20 squares. What size rectangle(s) contain(s) exactly 100 squares? Can you find them all?
Searching for mean(ing)
problem
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Searching for mean(ing)

Age
11 to 16
Challenge level
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If you have a large supply of 3kg and 8kg weights, how many of each would you need for the average (mean) of the weights to be 6kg?