Year 1 Addition and subtraction to 20

Take your Year 1 class outdoors for an action-packed maths unit where they’ll explore number bonds, addition, subtraction, and fact families within 20 using natural loose parts, chalk, and physical number lines. Through hands-on games and investigations, pupils will build fluency, strengthen strategies, and develop confidence in problem-solving while making learning active, memorable, and fun.

Lesson Plans

Finding number bonds to 20

Lead your Year 1 class on an exciting outdoor maths lesson as they actively find and make number bonds up to 20 using natural loose parts and chalk. This hands-on approach ensures a memorable and engaging learning experience, solidifying their understanding of addition and systematic problem-solving.

Learning objective:

To find and make number bonds up to 20.

Adding by making 10

Take your Year 1 class outdoors for an exciting maths lesson as they master adding by making 10 with natural loose parts and chalk. This hands-on approach strengthens addition strategies and number fluency, making learning active, interactive, and fun.

Learning objective:

To add by making 10.

Subtracting within 20 - not crossing 10

Take your Year 1 class outside for an exciting maths lesson as they master subtracting within 20, focusing on calculations that don’t cross 10. Using a variety of pictorial representations, this hands-on approach strengthens subtraction strategies and makes learning clear, active, and enjoyable.

Learning objective:

To subtract within 20. Not crossing 10.

Subtracting within 20 - crossing 10

Inspire your Year 1 class with this exciting outdoor maths lesson as they actively master subtracting within 20, focusing on calculations that cross 10. This hands-on approach using physical number lines and mental strategies ensures a memorable and engaging learning experience, solidifying their subtraction skills.

Learning objective:

To subtract within 20. Crossing 10.

Exploring fact families

Inspire your Year 1 class with this exciting outdoor maths lesson as they actively explore addition and subtraction fact families within 20 using natural loose parts. This hands-on approach ensures a memorable and engaging learning experience, solidifying their understanding of number relationships and problem-solving.

Learning objective:

To explore addition and subtraction fact families.

Comparing number sentences

Engage your Year 1 class with this exciting outdoor maths lesson as they actively master comparing number sentences within 20 using natural loose parts and sticks. This hands-on approach makes learning interactive, enjoyable, and confidence-building; solidifying their understanding of comparison symbols and mental arithmetic.

Learning objective:

To compare number sentences.

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