# Number Bonds to Ten – Dragon Eggs

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# Number Bonds to Ten – Dragon Eggs

*** Number Bonds to 10 *** – Print out this game and use it straight away to have students learn the number bonds to 10.

\$3.50

# Number Bonds to 10 – Dragon Eggs

### Game in a Nutshell:

Two players take turns throwing the die. The total thrown indicates the number bond focus. The player then chooses 2 numbers that

make up the number thrown and places a counter on corresponding eggs.

### Aims of the Game:

– to explore number bonds for numbers below 10
– to develop a working knowledge of number bonds for numbers below 10.

### What You Need:

2 players
1 ten-sided dice OR 2 normal dice
10 counters of one color
10 counters of another color

### Preparation:

– Each player places their counters in from of them.
– The person with the shortest little finger is Player One.
– Player One plays the top set of eggs
– Player Two plays the bottom set of eggs.

### How to Play:

1. Player One throws the dice. The number thrown determines the number the player’s focus on e.g. If 8 is thrown, the student covers a number bond for 8 e.g. 8+0, 7+1, 6+2, 5+3 or 4 on its own.
2. Player Two then rolls the dice and repeats Step 1.
3. Play continues in this fashion until one of the players covers all of their dragon eggs.

### How to Win:

The player who is the first to cover all their eggs is declared the winner.

### Before the Game:

– Explore number bonds using concrete materials
– Explore number bonds with ten frames.
– Discuss – ‘People who are successful in Mathematics spend a fair amount time practicing number bond mental strategies’
– Discuss – ‘Being able to break numbers down to their component number bonds means some mental computations become more efficient’ – explore examples.
– Discuss – Knowing number bonds makes computation easier – explore examples.

### During the Game:

– When roving the room encourage the use of number strategies.
– Strategy Talk –  When the opportunity arises to cover only one number, should a player take it? Why or why not?
– Strategy Talk – When you use 2 dice it is way more likely you will throw a 7. Is there a way to use this knowledge to help you win the game more often?

Number Bond Game – Teaching Tips

### After the Game:

– Discuss with the students anything they may have discovered while playing the game. The number 7 will be the most commonly thrown number when using two dice.
– With a partner – What strategies did they put in place to cover their eggs first? Share ideas and discuss.
– With a partner – Is it a helpful strategy to only cover one egg if the situation arises? Why? Why not? Share ideas and discuss.
– Students keep a tally of the numbers thrown in a series of games and graph their results, compare with other pairs. What were the similarities and differences?
– What could this mean? Some people do mental arithmetic ‘in their head’ and some do it, ‘with their head’?

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