Benchmarks of 5 and 10
A resource to support number knowledge development, providing opportunities for students to develop a strong understanding of combinations to 5 and 10, and the parts that make these quantities.
This resource was developed in partnership with the NSW Mathematics Strategy Professional Learning team, Curriculum Early Years and Primary Learners, and Literacy and Numeracy.
Using the resource
This resource is the fourth section of a 6 part resource supporting number knowledge. Use in conjunction with other resources in this series to support a connected network of critical mathematical concepts, skills and understanding.
Supporting tasks
Refer to the resource (available for download via the Universal Resources Hub) for full instructions on how to use each of these tasks and includes materials, related tasks and learning intentions.
Partitioning numbers
Students need to understand any given whole number can be partitioned (broken) into smaller parts. This flexibility in thinking about numbers, and using that flexibility, is an important foundation for flexible strategies.
Task 1: 10 or bust
Students watch ‘10 or bust’ to learn how to play.
- Variation 1: Adapt this task to focus on combinations to 5.
- Variation 2: Adapt the game to focus on combinations to 20. How do what we know about combinations to 10 help us with solving the combinations to 20?
Task 2: Let’s talk
Students watch ‘Let’s talk’ and investigate the strategies to solve 8 + 6.
Number combinations
Memorising basic facts is not the same as working with them. Facts learnt by rote are more easily forgotten. Provide rich and varied experiences for students so they internalise number combinations with conceptual understanding. Student and teacher modifications to games can be a powerful strategy. Make careful decisions when adjusting games to ensure the task still meets the original mathematical goal.
Task 3: Making ten
Student make various combinations of 10 using ten frames.
Variation 1: Adapt this activity to focus on combinations to five.
Variation 2: Play ‘shake and drop’ and explore combinations to ten without the ten-frame.
Task 4: Six piles
Students using playing cards 0-5 (PDF 393KB) (staff only) to make 2 or more cards equalling 5.
Variation 1: Adapt the game to compose any quantity up to and including 10
Variation 2: Use any operation
Variation 3: Use the ace to represent 11 and adapt to game to find combinations to 20.
Related supporting number knowledge resources
Contact
For more information, contact literacy.numeracy@det.nsw.edu.au