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# Reasoning and Convincing at KS2 - Primary Teachers

### If the World Were a Village

### Beads and Bags

### Money Bags

### The Puzzling Sweet Shop

### Fifteen Cards

### Guess the Dominoes

### Less Is More

### Magic Vs

### Mathdoku

### Sealed Solution

### Six Ten Total

### What's it Worth?

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John Mason talks about convincing yourself, convincing a friend and convincing a sceptic. If your pupils don't know what a sceptic is, now's a good time to help them to understand!!

This collection is one of our Primary Curriculum collections - tasks that are grouped by topic.

Age 5 to 11

Challenge Level

This activity is based on data in the book 'If the World Were a Village'. How will you represent your chosen data for maximum effect?

Age 5 to 11

Challenge Level

How could you put these three beads into bags? How many different ways can you do it? How could you record what you've done?

Age 5 to 11

Challenge Level

Ram divided 15 pennies among four small bags. He could then pay any sum of money from 1p to 15p without opening any bag. How many pennies did Ram put in each bag?

Age 5 to 11

Challenge Level

There were chews for 2p, mini eggs for 3p, Chocko bars for 5p and lollypops for 7p in the sweet shop. What could each of the children buy with their money?

Age 7 to 11

Challenge Level

Can you use the information to find out which cards I have used?

Age 7 to 11

Challenge Level

This task depends on learners sharing reasoning, listening to opinions, reflecting and pulling ideas together.

Age 7 to 11

Challenge Level

Use your knowledge of place value to try to win this game. How will you maximise your score?

Age 7 to 11

Challenge Level

Can you put the numbers 1-5 in the V shape so that both 'arms' have the same total?

Age 7 to 11

Challenge Level

Complete the Mathdoku grid using the clues. Can you convince us that the number you have chosen for each square has to be correct?

Age 7 to 11

Challenge Level

Ten cards are put into five envelopes so that there are two cards in each envelope. The sum of the numbers inside it is written on each envelope. What numbers could be inside the envelopes?

Age 7 to 11

Challenge Level

This challenge combines addition, multiplication, perseverance and even proof.

Age 11 to 16

Challenge Level

There are lots of different methods to find out what the shapes are worth - how many can you find?