Add and Subtract: Part-whole Model

★★★★★ 5.0 • Year 1 Maths • 🎓 Interactive Lesson & Activities

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By the end of this unit, students will be able to:

Understand the part-whole model, which illustrates how numbers can be combined to create a whole.
Explore number bonds by breaking down a whole into its component parts, fostering a deeper understanding of addition relationships.

Curriculum Alignment: Year 1 Mathematics: Addition and subtraction

read, write and interpret mathematical statements involving addition (+), subtraction (−) and equals (=) signs
represent and use number bonds and related subtraction facts within 20

Year Group	Year 1 Maths
Resource Type	🎓 Interactive Lesson & Activities
Format	Digital Only
Curriculum	England & Wales — KS1 (Years 1–2)
Added	4 March 2026