Are you still keen to solve Digit Dog’s challenges? Before clicking on the snowmen, have a look at them and think:

*What do you notice?*

*What is the same about the snowmen?*

*What is different about them?*

*Can you sort them into groups?*

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# Month: November 2019

Posted in Christmas ## Advent Calendar – Week 3

Posted in Christmas ## Christmaths Advent Calendar – Week 2

Posted in Christmas, Problem solving ## Christmaths advent calendar

Posted in Christmas, Numicon, Problem solving ## Start planning your Christmaths with Digit Dog

## One Santa’s sleigh – put the presents on Santa’s sleigh

Posted in Calculating, Making totals, Number sense ## Using Numicon® to explore equivalences

You will need Santa’s sleighs (download and print) and a set of *Numicon®* shapes. Match the shapes to the spaces on the sleigh.

- Give children just the shapes they need and let them match them to the spaces on the sleigh.
- Have a complete set of shapes for children to choose from.
- When the sleigh is covered, one partner closes their eyes, the other takes away one shape. Which one is missing?
- For an extra challenge, put the shapes in a feely bag and find the ones you need by touch alone.

Ask:

*How many shapes do you need?*

*Which shape will fit here…..?*

*Is the shape that goes here big or small? Bigger / smaller than a red one?*

*Can you take away one shape and put two in its place?*

*Which shapes are easy to find?*

5. Start with the blank sleigh and ask learners to use the *Numicon *shapes to cover it in any way they can.

How many different ways can you do it? Compare your sleigh with your friend’s. What’s the same and what’s different?

What if…………

You weren’t allowed to use the same shape more than once? How many ways can you do it? Is this more difficult? What are you thinking?

Can you use one shape repeatedly to cover the sleigh? Which shapes will work? Which won’t? Why?

What is the fewest number of shapes you can use? The most?

You use only odd shapes? Only even?

Find more ideas in the Santa’s Sleigh Challenge Booklet

The idea of equal value is fundamental to mathematical understanding. Children need to understand that the “=” symbol means “equal value” and not “here is the answer”.

Ask:

*How can you make the scales balance?*

*Which Numicon® shape could go in the pan balance?*

What about this one?

*How are you going to solve it? Explain your thinking.*

*What if ………..you changed the shapes?*

Now using numerals.

*Can you model this with the pan balance and Numicon® shapes?*

*What’s the missing number? Explain how you know. Record the sentence.*

*Make up some of your own.*

Make sets of problems like this to put with a pan balance in your enhanced provision.