List

Year 11 Exploring and noticing

How old am I?
problem
Favourite

How old am i?

Age
14 to 16
Challenge level
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In 15 years' time my age will be the square of my age 15 years ago. Can you work out my age, and when I had other special birthdays?
Beelines
problem
Favourite

Beelines

Age
14 to 16
Challenge level
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Is there a relationship between the coordinates of the endpoints of a line and the number of grid squares it crosses?
Power Countdown
problem
Favourite

Power countdown

Age
14 to 16
Challenge level
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In this twist on the well-known Countdown numbers game, use your knowledge of Powers and Roots to make a target.
Vector journeys
problem
Favourite

Vector journeys

Age
14 to 18
Challenge level
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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?
Factorising with Multilink
problem
Favourite

Factorising with multilink

Age
14 to 16
Challenge level
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Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?
Where to Land
problem
Favourite

Where to land

Age
14 to 16
Challenge level
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Chris is enjoying a swim but needs to get back for lunch. How far along the bank should she land?
Matchless
problem
Favourite

Matchless

Age
14 to 16
Challenge level
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There is a particular value of x, and a value of y to go with it, which make all five expressions equal in value, can you find that x, y pair ?
The Legacy
problem
Favourite

The legacy

Age
14 to 16
Challenge level
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Your school has been left a million pounds in the will of an ex- pupil. What model of investment and spending would you use in order to ensure the best return on the money?
Partly Painted Cube
problem
Favourite

Partly painted cube

Age
14 to 16
Challenge level
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Jo made a cube from some smaller cubes, painted some of the faces of the large cube, and then took it apart again. 45 small cubes had no paint on them at all. How many small cubes did Jo use?
Training schedule
problem
Favourite

Training schedule

Age
14 to 16
Challenge level
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The heptathlon is an athletics competition consisting of 7 events. Can you make sense of the scoring system in order to advise a heptathlete on the best way to reach her target?
Difference of Two Squares
problem
Favourite

Difference of two squares

Age
14 to 16
Challenge level
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What is special about the difference between squares of numbers adjacent to multiples of three?
Square Number Surprises
problem
Favourite

Square number surprises

Age
14 to 16
Challenge level
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There are unexpected discoveries to be made about square numbers...
Dating made Easier
problem
Favourite

Dating made easier

Age
14 to 16
Challenge level
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If a sum invested gains 10% each year how long before it has doubled its value?