### Traffic Lights

The game uses a 3x3 square board. 2 players take turns to play, either placing a red on an empty square, or changing a red to orange, or orange to green. The player who forms 3 of 1 colour in a line wins.

### Achi

This game for two players comes from Ghana. However, stones that were marked for this game in the third century AD have been found near Hadrian's Wall in Northern England.

### Sumo

Reasoning based on this Japanese activity.

# Totality for Two

##### Stage: 1 and 2 Challenge Level:

Here's a game to play with a grown-up!

How do you play?
You'll need a grown-up to play with.
You'll also need a copy of the game board and a counter.

Work out how to play by watching the video with the sound off and discussing what you think the rules are.
Check your rules by watching the video again with the sound on.

If you can't view the video, the rules of the game are hidden below.

The aim of the game:

Slide the shared counter across several adjacent numbers, adding them up as you go to make a 'running' total. Be the player to make the final slide so that the chosen target is reached exactly. Making the total go above the target loses you the game.

How to play:

1. Choose a target to reach. This is the total both you and the grown-up are trying to make.

2. The grown-up places their counter on the game board over one of the numbers and says that number.

3. Move the same counter in any direction along a line segment to a neighbouring number and announce the total of the two numbers.

4. The grown-up moves the same counter to cover a neighbouring number, adds on that number, and announces the 'running' total of the three numbers.

5. Take it in turns to slide the counter to cover a neighbouring number and to add that number to the 'running' total.

6. Players must move when it is their turn.

7. No 'jumping' is allowed.

Notes for grown-ups
This game is designed to help children practise number bonds and addition. There is also an opportunity for thinking strategically by working out what will happen several moves in advance.

Easier version: instead of playing against each other, you could work together to try to make 20.
Harder version: discuss what the shortest 'string' of numbers would be that adds to the total. How many different 'strings' of numbers add to that total?

There's a group version of this game here.