Exploring and noticing

There are 412 NRICH Mathematical resources connected to Exploring and noticing
Price Match
problem
Favourite

Price match

Age
7 to 11
Challenge level
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Can you find pairs of differently sized windows that cost the same?

Pouring Problem
problem
Favourite

Pouring problem

Age
7 to 11
Challenge level
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What do you think is going to happen in this video clip? Are you surprised?

Tumbling Down
problem
Favourite

Tumbling down

Age
7 to 11
Challenge level
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Watch this animation. What do you see? Can you explain why this happens?

Move those Halves
problem
Favourite

Move those halves

Age
7 to 11
Challenge level
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For this task, you'll need an A4 sheet and two A5 transparent sheets. Decide on a way of arranging the A5 sheets on top of the A4 sheet and explore ...

Star Polygons
problem
Favourite

Star polygons

Age
11 to 14
Challenge level
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Draw some stars and measure the angles at their points. Can you find and prove a result about their sum?

Paper Patchwork 1
problem
Favourite

Paper patchwork 1

Age
5 to 7
Challenge level
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Can you work out what shape is made when this piece of paper is folded up using the crease pattern shown?

Paper Patchwork 2
problem
Favourite

Paper patchwork 2

Age
5 to 7
Challenge level
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Have a go at making a few of these shapes from paper in different sizes. What patterns can you create?

Seeing Rhombuses
problem

Seeing rhombuses

Age
7 to 11
Challenge level
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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 rhombus.

Counting Stick Conjectures
problem

Counting stick conjectures

Age
5 to 11
Challenge level
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How many rectangles can you see? Are they all the same size? Can you predict how many rectangles there will be in counting sticks of different lengths?
Inequalities
problem

Inequalities

Age
16 to 18
Challenge level
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Which of the statements must be true?