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V-P Cycles

Age 16 to 18 Challenge Level:

Form a sequence of vectors by multiplying each vector (using vector products) by a constant vector to get the next one in the seuence(like a GP). What happens?

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Vaccination Game

Age 11 to 16

This activity encourages students to consider the effect of vaccination on the spread of a disease.

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Valuable Percentages

Age 11 to 14 Short Challenge Level:

Weekly Problem 23 - 2010
These numbers have been written as percentages. Can you work out which has the greatest value?

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Vanishing Point

Age 14 to 18 Challenge Level:

How can visual patterns be used to prove sums of series?

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Vanishing Roots

Age 14 to 18

If $y=x^2-6x+c$, and we vary $c$, what happens to the roots when $c>9$?

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Various Venns

Age 7 to 11 Challenge Level:

Use the interactivities to complete these Venn diagrams.

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Vector Gem Collector

Age 14 to 18 Challenge Level:

Use vectors to collect as many gems as you can and bring them safely home!

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Vector Journeys

Age 14 to 18 Challenge Level:

Charlie likes to go for walks around a square park, while Alison likes to cut across diagonally. Can you find relationships between the vectors they walk along?

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Vector Racer

Age 11 to 16 Challenge Level:

The classic vector racing game.

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Vector Walk

Age 14 to 18 Challenge Level:

Starting with two basic vector steps, which destinations can you reach on a vector walk?

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Vectors

Working on these problems will help your students develop a better understanding of vectors.

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Vectors

Age 16 to 18

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Vectors

Age 11 to 14 Challenge Level:

Working on these problems will help you develop a better understanding of vectors.

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Vectors - Short Problems

A collection of short problems on vectors.

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Vectors in Mechanics

Age 16 to 18

Resources to support the teaching and learning of vectors in mechanics

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Vectors Round a Square

Age 11 to 16

What is special about the relationships between vectors that define a square?

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Vedic Sutra - All from 9 and Last from 10

Age 14 to 16 Challenge Level:

Vedic Sutra is one of many ancient Indian sutras which involves a cross subtraction method. Can you give a good explanation of WHY it works?

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Vegtown Elections

Age 14 to 16 Short Challenge Level:

What percentage of people voted for the Broccoli party in the Vegtown election?

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Venn Diagram Fun

Age 16 to 18 Short Challenge Level:

Can you create a Venn diagram?

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Venn Diagrams

Age 5 to 11 Challenge Level:

Use the interactivities to complete these Venn diagrams.

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Very Average

Age 14 to 16 Short Challenge Level:

If each number in this list is the average of the two numbers before it, what is the value of a?

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Very Long Line

Age 14 to 16 Short Challenge Level:

If the line on the right were 0.2mm thick, how long would it need to be to cover an area of one square metre?

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Very Old Man

Age 16 to 18 Challenge Level:

Is the age of this very old man statistically believable?

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Video Conference - Proof

Age 16 to 18 Challenge Level:

Details of the Motivate Video Conference on Proof given on 13th October 2008

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Video List

A list of the video resources available on nrich

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Vienna International School

Resources to accompany Charlie's workshop with teachers.

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Virtual Geoboard

A virtual geoboard that allows you to create shapes by stretching rubber bands between pegs on the board. Allows a variable number of pegs and variable grid geometry and includes a point labeller.

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Visual Proofs

Pictures that tell a story; proofs without words.

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Visualising

Age 11 to 14

Work on these problems to improve your visualisation skills.

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Visualising

Age 11 to 16

Problems about visualising for use with Stage 3 and 4 students.

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Visualising - Advanced

Age 16 to 18

Problems about visualising for use with Stage 5 students.

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Visualising - Short Problems

Age 11 to 16

A collection of short Stage 3 and 4 problems on Visualising.

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Visualising - Upper Secondary

Age 14 to 18

Develop your skills of visualisation of mathematical objects

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Visualising and Representing Complex Numbers

Age 16 to 18 Challenge Level:

What are complex numbers, and how can we represent them?

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Visualising at KS1

Age 5 to 7

These lower primary tasks all specifically draw on the use of visualising.

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Visualising at KS2

Age 7 to 11

These upper primary tasks all specifically draw on the use of visualising.

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Vital?

Age 16 to 18 Challenge Level:

Third challenge cipher

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Volume and Capacity KS2

Age 7 to 11

These resources introduce and explore the concepts of volume and capacity.

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Volume of a Pyramid and a Cone

Age 11 to 14

These formulae are often quoted, but rarely proved. In this article, we derive the formulae for the volumes of a square-based pyramid and a cone, using relatively simple mathematical concepts.

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Volume of a Pyramid and a Cone - Animations

These are the interactivities for the article 'Volume of a Pyramid and a Cone on NRICH website. They might take a very long time to load on some computers.

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Von Koch Curve

Age 16 to 18 Challenge Level:

Make a poster using equilateral triangles with sides 27, 9, 3 and 1 units assembled as stage 3 of the Von Koch fractal. Investigate areas & lengths when you repeat a process infinitely often.

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Voting Paradox

Age 14 to 18 Challenge Level:

Some relationships are transitive, such as `if A>B and B>C then it follows that A>C', but some are not. In a voting system, if A beats B and B beats C should we expect A to beat C?