This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?
A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.
This article for teachers describes a joint project in 2007/8 with Haringey Local Authority and NRICH to support improving using and applying mathematics, reasoning and creativity.
Skippy and Anna are locked in a room in a large castle. The key to that room, and all the other rooms, is a number. The numbers are locked away in a problem. Can you help them to get out?
Five children are taking part in a climbing competition with three parts, where their score for each part will be multiplied together. Can you see how the leaderboard will change depending on what happens in the final climb of the competition?
In the 2020 Olympic Games, sport climbing was introduced for the first time, and something very interesting happened with the scoring system. Can you find out what was interesting about it?
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
This article for primary teachers suggests ways in which we can help learners move from being novice reasoners to expert reasoners.
By selecting digits for an addition grid, what targets can you make?
