Number and Place Value
Robot Monsters
Use these head, body and leg pieces to make Robot Monsters which are different heights.
Same Length Trains
How many trains can you make which are the same length as Matt's and Katie's, using rods that are identical?
Buzzy Bee
Buzzy Bee was building a honeycomb. She decorated the honeycomb with a pattern using numbers. Can you discover Buzzy's pattern and fill in the empty cells for her?
Snail One Hundred
In this game, you throw a dice and move counters along the snail's body and in a spiral around the snail's shell. It is about understanding tens and ones.
Tug of War
Can you use the numbers on the dice to reach your end of the number line before your partner beats you?
Five Steps to 50
Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?
All Change
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?
Biscuit Decorations
Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?
Two-digit Targets
You have a set of the digits from 0 to 9. Can you arrange these in the five boxes to make two-digit numbers as close to the targets as possible?
Count the Crayons
How could you estimate the number of pencils/pens in these pictures?
Writing Digits
Lee was writing all the counting numbers from 1 to 20. She stopped for a rest after writing seventeen digits. What was the last number she wrote?
I Like ...
Mr Gilderdale is playing a game with his class. What rule might he have chosen? How would you test your idea?
Eightness of Eight
What do you see as you watch this video? Can you create a similar video for the number 12?
Light the Lights
Investigate which numbers make these lights come on. What is the smallest number you can find that lights up all the lights?
Missing Middles
Can you work out the domino pieces which would go in the middle in each case to complete the pattern of these eight sets of three dominoes?
Making Sticks
Kimie and Sebastian were making sticks from interlocking cubes and lining them up. Can they make their lines the same length? Can they make any other lines?
6 Beads
If you put three beads onto a tens/ones abacus you can make the numbers 3, 30, 12 or 21. What numbers can be made with six beads?
What's in a Name?
Here's a very elementary code that requires young children to read a table, and look for similarities and differences.
Grouping Goodies
Pat counts her sweets in different groups and both times she has some left over. How many sweets could she have had?
How Would We Count?
An activity centred around observations of dots and how we visualise number arrangement patterns.
Digit Addition
Try out this number trick. What happens with different starting numbers? What do you notice?
That Number Square
Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?
Count the Digits
In this investigation we are going to count the number of 1s, 2s, 3s etc in numbers. Can you predict what will happen?
How Many?
Have a look at these photos of different fruit. How many do you see? How did you count?
Dotty Six
Dotty Six is a simple dice game that you can adapt in many ways.
Largest EvenLive
How would you create the largest possible two-digit even number from the digit I've given you and one of your choice?