Bar Models: Addition & Subtraction — Year 2

Help Year 2 students make addition and subtraction visible with part-part-whole bar models. This complete unit combines explicit teaching, worked examples, practical games and carefully sequenced independent practice so students can move from identifying the whole and parts to solving and explaining mixed problems.

The 24-slide editable PowerPoint presentation introduces bar-model structure, models addition and subtraction, explores unknown wholes and missing parts, and develops operation choice and mathematical reasoning. Colour displays, 16 task cards and two games provide supported and collaborative practice. Seven black-and-white worksheets progress from matching models to drawing representations and solving mixed word problems. A two-page assessment, matching answer pages and a five-level rubric support evidence-based evaluation.

Use the unit as a five-lesson teaching sequence or select individual components for small groups, intervention, homework, revision or assessment.

What’s Included

• 24-slide editable teaching presentation
• 22-slide editable quiz with 10 question-and-answer pairs
• 32-page unit plan
• Four-display set covering bar-model basics, the whole, missing parts and operation connections
• 16 Bar Model Challenge Task Cards, recording sheet and answer page
• Race to the Whole and Missing Part Mission games
• Seven worksheets covering matching, addition, subtraction, drawing models, word problems, equal parts and mixed challenges
• Matching answer pages for the recording sheet and all seven worksheets
• Two-page Bar Model Problem-Solving Assessment with answers
• Five-level landscape rubric
• 10 matching answer pages in total

Learning Focus

• Identify the whole and the parts in a part-part-whole model
• Represent addition and subtraction stories with bar models
• Find an unknown whole or a missing part
• Connect bar models, number sentences and word problems
• Choose an appropriate operation
• Explain and justify mathematical reasoning

Classroom Use

Suitable for whole-class explicit teaching and worked examples, guided mathematics groups, intervention, partner task-card work and games, independent practice, differentiated consolidation, formative quiz review and summative assessment.

Formats and Answer Support

Files are supplied in PDF and editable Microsoft PowerPoint PPTX formats. The unit includes a 32-page unit plan, 24-slide presentation, 22-slide quiz and 10 matching answer pages.

Digital Product and Licence

This is a digital product; no physical item is supplied. Purchase permits use by the original purchaser in their own classroom. Do not share, redistribute, resell or post the files publicly.