List

Secondary Interactive games and challenges

This is our collection of games specially chosen for use in the computer room or on the whiteboard. Each explores a strategic or mathematical theme; they will work well as teacher-led class activities but are also suitable for students to play directly, as they can all be played by individuals against the computer and none require direct teacher mediation. As with all of our games, players should be armed with a pen and paper to help to plan their strategies and record their findings as they play.

The games are listed in approximate order of difficulty.
The Remainders Game
game
Favourite

The remainders game

Play this game and see if you can figure out the computer's chosen number.

Countdown
game
Favourite

Countdown

Here is a chance to play a version of the classic Countdown Game.

Treasure Hunt
problem
Favourite

Treasure hunt

Age
7 to 14
Challenge level
filled star empty star empty star

Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?

Dozens
problem
Favourite

Dozens

Age
7 to 14
Challenge level
filled star empty star empty star

Can you select the missing digit(s) to find the largest multiple?

missing multipliers
problem
Favourite

Missing multipliers

Age
7 to 14
Challenge level
filled star empty star empty star
What is the smallest number of answers you need to reveal in order to work out the missing headers?
Got It
problem
Favourite

Got it

Age
7 to 14
Challenge level
filled star filled star empty star

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.

Fruity Totals
problem
Favourite

Fruity totals

Age
7 to 16
Challenge level
filled star empty star empty star

In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?

The Number Jumbler
problem
Favourite

The Number Jumbler

Age
7 to 14
Challenge level
filled star empty star empty star

The Number Jumbler can always work out your chosen symbol. Can you work out how?

Latin Lilies
problem

Latin lilies

Age
7 to 14
Challenge level
filled star empty star empty star
In this game you are challenged to gain more columns of lily pads than your opponent.
Factors and Multiples Game
game
Favourite

Factors and multiples game

A game in which players take it in turns to choose a number. Can you block your opponent?

All in a jumble
problem
Favourite

All in a jumble

Age
11 to 14
Challenge level
filled star filled star empty star
My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.
In the bag
problem
Favourite

In the bag

Age
11 to 14
Challenge level
filled star empty star empty star
Can you guess the colours of the 10 marbles in the bag? Can you develop an effective strategy for reaching 1000 points in the least number of rounds?
Vector Racer
game
Favourite

Vector racer

The classic vector racing game.

Up, down, flying around
game
Favourite

Up, down, flying around

Play this game to learn about adding and subtracting positive and negative numbers

Countdown fractions
problem
Favourite

Countdown fractions

Age
11 to 16
Challenge level
filled star empty star empty star
Here is a chance to play a fractions version of the classic Countdown Game.
Shifting Times Tables
problem
Favourite

Shifting times tables

Age
11 to 14
Challenge level
filled star empty star empty star

Can you find a way to identify times tables after they have been shifted up or down?

Nine Colours
problem
Favourite

Nine colours

Age
11 to 16
Challenge level
filled star filled star filled star
Can you use small coloured cubes to make a 3 by 3 by 3 cube so that each face of the bigger cube contains one of each colour?
Mixing Lemonade
problem
Favourite

Mixing lemonade

Age
11 to 14
Challenge level
filled star empty star empty star

Can you work out which drink has the stronger flavour?

Frogs
problem
Favourite

Frogs

Age
11 to 14
Challenge level
filled star empty star empty star
How many moves does it take to swap over some red and blue frogs? Do you have a method?
Charlie's delightful machine
problem
Favourite

Charlie's delightful machine

Age
11 to 16
Challenge level
filled star empty star empty star

Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?

Square It
problem
Favourite

Square it

Age
11 to 16
Challenge level
filled star empty star empty star

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.

Polygon Rings
problem
Favourite

Polygon rings

Age
11 to 14
Challenge level
filled star empty star empty star

Join pentagons together edge to edge. Will they form a ring?

Arithmagons
problem
Favourite

Arithmagons

Age
11 to 16
Challenge level
filled star empty star empty star

Can you find the values at the vertices when you know the values on the edges?

Magic potting sheds
problem
Favourite

Magic potting sheds

Age
11 to 16
Challenge level
filled star filled star empty star
Mr McGregor has a magic potting shed. Overnight, the number of plants in it doubles. He'd like to put the same number of plants in each of three gardens, planting one garden each day. Can he do it?
Last Biscuit
game

Last biscuit

Can you find a strategy that ensures you get to take the last biscuit in this game?

Connect Three
problem
Favourite

Connect three

Age
11 to 16
Challenge level
filled star filled star empty star

In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?

crossing the bridge
problem

Crossing the bridge

Age
11 to 18
Challenge level
filled star filled star empty star

Four friends must cross a bridge. How can they all cross it in just 17 minutes?

Diamond Collector
game
Favourite

Diamond collector

Collect as many diamonds as you can by drawing three straight lines.

Multiplication arithmagons
problem
Favourite

Multiplication arithmagons

Age
14 to 16
Challenge level
filled star filled star empty star

Can you find the values at the vertices when you know the values on the edges of these multiplication arithmagons?

Finding factors
problem
Favourite

Finding factors

Age
14 to 16
Challenge level
filled star empty star empty star
Can you find the hidden factors which multiply together to produce each quadratic expression?
3D Treasure Hunt
problem

3D treasure hunt

Age
14 to 18
Challenge level
filled star filled star empty star

Some treasure has been hidden in a three-dimensional grid! Can you work out a strategy to find it as efficiently as possible?

Standard Index Form Matching
problem
Favourite

Standard index form matching

Age
14 to 16
Challenge level
filled star empty star empty star
Can you match these calculations in Standard Index Form with their answers?