More Low Threshold High Ceiling Tasks

Eightness of Eight

Age 5 to 7
Challenge Level

What do you see as you watch this video? Can you create a similar video for the number 12?

Unexpected Ordering

Age 5 to 7
Challenge Level

Watch the video of Fran re-ordering these number cards. What do you notice? Try it for yourself. What happens?

Next-door Numbers

Age 5 to 7
Challenge Level

Florence, Ethan and Alma have each added together two 'next-door' numbers. What is the same about their answers?

Ring a Ring of Numbers

Age 5 to 7
Challenge Level

Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.

Strike it Out

Age 5 to 11
Challenge Level

Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

Dotty Six

Age 5 to 11
Challenge Level

Dotty Six is a simple dice game that you can adapt in many ways.

I'm Eight

Age 5 to 11
Challenge Level

Find a great variety of ways of asking questions which make 8.

Digit Addition

Age 5 to 11
Challenge Level

Try out this number trick. What happens with different starting numbers? What do you notice?

Seeing Squares

Age 5 to 11
Challenge Level

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 square.

School Fair Necklaces

Age 5 to 11
Challenge Level

How many possible necklaces can you find? And how do you know you've found them all?

Magic Vs

Age 7 to 11
Challenge Level

Can you put the numbers 1-5 in the V shape so that both 'arms' have the same total?

Surprising Split

Age 7 to 11
Challenge Level

Does this 'trick' for calculating multiples of 11 always work? Why or why not?

Number Differences

Age 7 to 11
Challenge Level

Place the numbers from 1 to 9 in the squares below so that the difference between joined squares is odd. How many different ways can you do this?

Consecutive Numbers

Age 7 to 14
Challenge Level

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Subtraction Surprise

Age 7 to 14
Challenge Level

Try out some calculations. Are you surprised by the results?