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Resources tagged with Video similar to Impossible Triangles?:

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Video. Generalising. Rational and irrational numbers. Number theory. Mathematical reasoning & proof. Making and proving conjectures. Patterned numbers. Inequality/inequalities. Equilateral triangles. Manipulating algebraic expressions/formulae.

There are 22 results

Broad Topics > Information and Communications Technology > Video

Impossible Triangles?

Stage: 5 Challenge Level:

Which of these triangular jigsaws are impossible to finish?

Cyclic Quad Jigsaw

Stage: 4 Challenge Level:

A picture is made by joining five small quadrilaterals together to make a large quadrilateral. Is it possible to draw a similar picture if all the small quadrilaterals are cyclic?

Symmetric Tangles

Stage: 4

The tangles created by the twists and turns of the Conway rope trick are surprisingly symmetrical. Here's why!

Take Three from Five

Stage: 3 and 4 Challenge Level:

Caroline and James pick sets of five numbers. Charlie chooses three of them that add together to make a multiple of three. Can they stop him?

Steve's Mapping

Stage: 5 Challenge Level:

Steve has created two mappings. Can you figure out what they do? What questions do they prompt you to ask?

Alison's Mapping

Stage: 4 Challenge Level:

Alison has created two mappings. Can you figure out what they do? What questions do they prompt you to ask?

Speedy Summations

Stage: 5 Challenge Level:

Watch the video to see how to add together an arithmetic sequence of numbers efficiently.

Impossible Square?

Stage: 5 Challenge Level:

Can you make a square from these triangles?

Slick Summing

Stage: 4 Challenge Level:

Watch the video to see how Charlie works out the sum. Can you adapt his method?

Factorising with Multilink

Stage: 4 Challenge Level:

Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?

Introduction to Number Plumber

Stage: 2, 3, 4 and 5 Challenge Level:

Video showing how to use the Number Plumber

James's Code Challenge

Stage: 2, 3, 4 and 5 Challenge Level:

The Enigma Project's James Grime has created a video code challenge. Watch it here!

Galley Division

Stage: 4 Challenge Level:

Can you explain how Galley Division works?

Circuit Maker

Stage: 2, 3, 4 and 5 Challenge Level:

Investigate how logic gates work in circuits.

The Invertible Trefoil

Stage: 4 Challenge Level:

When is a knot invertible ?

NQT Inspiration Day 2013

Stage: 1, 2, 3, 4 and 5 Challenge Level:

BOOKING OPEN!! A FREE professional development day for NQTs.

Whirlyball

Stage: 5 Challenge Level:

Whirl a conker around in a horizontal circle on a piece of string. What is the smallest angular speed with which it can whirl?

Plaited Origami Polyhedra

Stage: 2, 3 and 4 Challenge Level:

These models have appeared around the Centre for Mathematical Sciences. Perhaps you would like to try to make some similar models of your own.

Jo Boaler Explains Complex Instruction

Stage: 1, 2, 3, 4 and 5 Challenge Level:

A video clip of Jo Boaler talking about Complex Instruction.

Kingsfield School - Building on Rich Starting Points

Stage: 1, 2, 3, 4 and 5

Alf and Tracy explain how the Kingsfield School maths department use common tasks to encourage all students to think mathematically about key areas in the curriculum.

Turning the Place Over

Stage: 3, 4 and 5 Challenge Level:

As part of Liverpool08 European Capital of Culture there were a huge number of events and displays. One of the art installations was called "Turning the Place Over". Can you find our how it works?

The Best Card Trick?

Stage: 3 and 4 Challenge Level:

Time for a little mathemagic! Choose any five cards from a pack and show four of them to your partner. How can they work out the fifth?