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You can also watch a recording of the webinar in which we discussed the mathematical thinking which can be prompted by these activities.

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### Going Deeper: Achieving Greater Depth with Geometry

This article for Primary teachers outlines how providing opportunities to engage with increasingly complex problems, and to communicate thinking, can help learners 'go deeper' with geometry.

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### Matching Triangles

Can you sort these triangles into three different families and explain how you did it?

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### Jig Shapes

Can you each work out what shape you have part of on your card? What will the rest of it look like?

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### Always, Sometimes or Never? KS1

Are these statements relating to calculation and properties of shapes always true, sometimes true or never true?

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### Seeing Squares

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.

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### Let's Investigate Triangles

Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?

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### One Big Triangle

Make one big triangle so the numbers that touch on the small triangles add to 10.

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### Skeleton Shapes

How many balls of modelling clay and how many straws does it take to make these skeleton shapes?

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### A Cartesian Puzzle

Find the missing coordinates which will form these eight quadrilaterals. These coordinates themselves will then form a shape with rotational and line symmetry.

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### A Puzzling Cube

Here are the six faces of a cube - in no particular order. Here are three views of the cube. Can you deduce where the faces are in relation to each other and record them on the net of this cube?

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### Square Corners

What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?

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### Treasure Hunt

Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?

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### Always, Sometimes or Never? Shape

Are these statements always true, sometimes true or never true?

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### Stringy Quads

This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!

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### Egyptian Rope

The ancient Egyptians were said to make right-angled triangles using a rope with twelve equal sections divided by knots. What other triangles could you make if you had a rope like this?

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### Fitted

Nine squares with side lengths 1, 4, 7, 8, 9, 10, 14, 15, and 18 cm can be fitted together to form a rectangle. What are the dimensions of the rectangle?