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Mathematics @ ENPS

Year One Additive Thinking

Connection to the Mathematics Curriculum 2.0: Add and subtract numbers within 20, using physical and virtual materials, part-part-whole knowledge and a variety of calculation strategies.

 

We are learning to add and subtract numbers to 20. Additive thinking is connected to understanding the construction and representation of number, especially part-part-whole ideas and place value. We will be focusing on knowing when to add and subtract and choosing the correct strategy for the task or problem. This week we focused on the problem-solving strategies ‘draw a picture’ and ‘draw a table’. Look at our amazing work! 

 

Next, we will be focusing on additive strategies such as doubles and bridging through ten.

Game: Double My Number

You will need:

  • 7 blank cards (Tip: cut up a piece of paper into smaller rectangles)

  • 2 players

To prepare for the game:

  • Write the numbers 0-6 on the cards (one number per card).

  • Discuss each number and work out what double that number would be. You might like to model it with things from around the house.

To play the game:

  1. Choose one person to be the the card holder. The other person will the caller.

  2. The card holder mixes up the cards and holds one card up. The caller will double the number and call it out. It is okay if your child needs to use their fingers or materials to work it out. If you play this game enough your child will begin to automatise their responses.

  3. After you have been through all the cards, swap places. It’s important for children to have a go at both roles.

You might like to begin with the numbers 0-4 first and once your child begins to automatise their responses you can add the other cards. If your child needs a challenge, you can even make more cards with larger numbers on them.

 

HAVE FUN!

 

If you have any photos of your family playing Double My Number please email them to Fran for a feature in our school newsletter: Fran.Milic@education.vic.gov.au.

 

The Year One Team 

Macalie Vlah, Nicola Veneris, Amy Wirth, Matilda Hewett and Amy McDonald