### Interactive Spinners

### Games and Activities

These tasks for classroom use include a game or interactive content and are ideal for lessons with tablets, laptops, or in a computer room.### Have you got it?

### Beelines

### Nine Colours

### Frogs

### Napoleon's Theorem

### Anti-Magic Square

### Isosceles Triangles

### Stars

### Subtended angles

### Right angles

### In the bag

### Reaction timer

### Which spinners?

### At right angles

### L-triominoes

### Your number was...

### Finding factors

### Estimating time

### More Less is More

### Tessellation interactivity

### 5 by 5 Mathdokus

### 4 by 4 Mathdokus

### Less is More

### Number Lines in Disguise

### Treasure Hunt

### Your number is...

### Remainders

### Colour in the Square

### 4 Dom

### Tea Cups

### The Number Jumbler

### A little light thinking

Here is a machine with four coloured lights. Can you make two lights switch on at once? Three lights? All four lights?

### Shifting Times Tables

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

### Multiplication arithmagons

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

### Arithmagons

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

### More Number Pyramids

When number pyramids have a sequence on the bottom layer, some interesting patterns emerge...

### Square coordinates

A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?

### Rhombus It

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 rhombus.

### Square It

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.

### Factors and Multiples Game

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

### Triangles in circles

Can you find triangles on a 9-point circle? Can you work out their angles?

### Semi-regular Tessellations

Semi-regular tessellations combine two or more different regular polygons to fill the plane. Can you find all the semi-regular tessellations?

### The Remainders Game

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

### Diamond Collector

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

### Last Biscuit

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

### Tilted Squares

It's easy to work out the areas of most squares that we meet, but what if they were tilted?

### Cyclic Quadrilaterals

Draw some quadrilaterals on a 9-point circle and work out the angles. Is there a theorem?

### Charlie's delightful machine

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

### What numbers can we make now?

Imagine we have four bags containing numbers from a sequence. What numbers can we make now?

### Number Pyramids

Try entering different sets of numbers in the number pyramids. How does the total at the top change?

### Fruity Totals

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

### Parallelogram It

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 parallelogram.