In our latest feature, we explore what is meant by Low Threshold High Ceiling tasks. The collection of problems is designed to offer accessible starting points that can lead to challenging extensions.
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Low threshold high ceiling - an introduction
In this article for teachers, we explain what is meant by Low Threshold High Ceiling tasks, and why we like them.
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Creating a low threshold high ceiling classroom
This article explores the key features of a Low Threshold High Ceiling classroom.
problem
Flippin' discs
Age
11 to 14
Challenge level
Discs are flipped in the air. You win if all the faces show the same colour. What is the probability of winning?
problem
Cosy corner
Age
11 to 14
Challenge level
Six balls are shaken. You win if at least one red ball ends in a corner. What is the probability of winning?
problem
Two's company
Age
11 to 14
Challenge level
Seven balls are shaken. You win if the two blue balls end up touching. What is the probability of winning?
problem
Factorising with multilink
Age
14 to 16
Challenge level
Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?
problem
Hollow squares
Age
14 to 16
Challenge level
Which armies can be arranged in hollow square fighting formations?