Teach IB Maths MYP Year 1 Unit 3 – Ratio, Rate and Proportion with a complete bundle containing all 8 slide decks from 1.3.1 to 1.3.8.

Students learn how to:

• Use ratio notation to compare two or more quantities
• Distinguish between part-to-part and part-to-whole ratios
• Simplify ratios using common factors
• Recognise and generate equivalent ratios
• Use scale factors to create and check equivalent ratios
• Calculate and interpret unit rates
• Compare prices, speeds, and other quantities using common units
• Solve proportion problems using equivalent ratios and equations
• Find missing values in proportional relationships
• Interpret and use scale notation
• Find real and drawing lengths using scale drawings
• Convert between fractions, decimals, and percentages
• Find percentages of quantities and calculate percentage change
• Calculate discounts, sale prices, tax, and unit costs
• Use simple interest in introductory financial contexts
• Compare financial options and make informed spending decisions
• Apply ratio, rate, proportion, scale, and percentage concepts to recipes, maps, design, shopping, travel, and other real-world contexts
• Identify and correct common errors involving ratios, proportions, percentages, and financial calculations
• Communicate reasoning using ratios, tables, diagrams, equations, scale drawings, and written explanations
• Explore proportional relationships, test conjectures, and justify conclusions through inquiry activities
The bundle includes:

1. 1.3.1 Understanding Ratios
2. 1.3.2 Simplifying Ratios
3. 1.3.3 Equivalent Ratios
4. 1.3.4 Unit Rates
5. 1.3.5 Solving Proportion Problems
6. 1.3.6 Scale Drawings
7. 1.3.7 Percentage Relationships
8. 1.3.8 Introductory Financial Literacy

Use alongside this suggested IB Maths MYP curriculum map:

Please note that this curriculum map is not an official IB publication or a compulsory sequence prescribed by the IB. It presents one possible way to organise and cover the MYP mathematics branches, concepts, global contexts, and assessment criteria across Years 1–5. Schools and teachers should adapt the sequence, timing, and emphasis to suit their students and local curriculum requirements.

Designed around IB Maths MYP Year 1 Unit 3 – Ratio, Rate and Proportion, with a focus on the key concept of Relationships, the related concepts of Equivalence, Quantity, Models, Representation, and Generalization, and MYP Criteria A, B, C, and D.