Exploring and noticing

If you have ten counters numbered 1 to 10, how many can you put into pairs that add to 10? Which ones do you have to leave out? Why?

There are three versions of this challenge. The idea is to change the colour of all the spots on the grid. Can you do it in fewer throws of the dice?

You'll need to work in a group on this problem. Use your sticky notes to show the answer to questions such as 'how many girls are there in your group?'.

What patterns can you make with a set of dominoes?

For this activity which explores capacity, you will need to collect some bottles and jars.

In this activity focusing on capacity, you will need a collection of different jars and bottles.

This activity focuses on rounding to the nearest 10.

In this calculation, the box represents a missing digit. What could the digit be? What would the solution be in each case?

Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?

Can you spot the mistake in this video? How would you work out the answer to this calculation?