IB Maths MYP Year 2, Unit 1 - 2.1.7 Percentage Increase and Decrease

IB Maths MYP Year 2, Unit 1 Slidedeck Bundle

**Teach IB Maths MYP Year 2 Unit 1 – Rational Numbers and Percentages with a complete bundle containing all 9 slide decks from 2.1.1 to 2.1.9.** Students learn how to: • Interpret, compare, and order positive and negative numbers • Represent directed numbers on number lines • Use opposites and absolute value • Add and subtract directed numbers using number-line movement • Multiply and divide positive and negative integers using sign rules • Apply directed numbers to temperature, elevation, money, and other real-world contexts • Add and subtract fractions using equivalent fractions and common denominators • Multiply fractions and divide using reciprocals • Simplify fraction calculations and work with mixed numbers • Add, subtract, multiply, and divide decimals using place-value reasoning • Estimate and check decimal calculations for reasonableness • Convert between fractions, decimals, and percentages • Recognise and use equivalent numerical forms • Find percentages of quantities • Calculate percentage increases and decreases • Use multipliers to apply percentage change • Find percentage change from an original value • Work backwards using reverse percentages and inverse multipliers • Distinguish between cost price, selling price, profit, and loss • Calculate profit and loss amounts and percentages • Apply rational numbers and percentages to shopping, discounts, budgets, prices, populations, temperature, and other real-world contexts • Identify and correct common errors involving signs, fractions, decimals, percentages, and financial calculations • Communicate reasoning using number lines, equations, equivalent forms, multipliers, and written explanations • Explore numerical relationships, test claims, and justify conclusions through inquiry activities The bundle includes: 1. **2.1.1 Directed Numbers** 2. **2.1.2 Operations with Directed Numbers** 3. **2.1.3 Multiplying and Dividing Integers** 4. **2.1.4 Operations with Fractions** 5. **2.1.5 Operations with Decimals** 6. **2.1.6 Fractions, Decimals and Percentages** 7. **2.1.7 Percentage Increase and Decrease** 8. **2.1.8 Reverse Percentages** 9. **2.1.9 Money, Profit and Loss** Use alongside this suggested IB Maths MYP curriculum map: [IB Maths MYP Curriculum Map](https://docs.google.com/spreadsheets/d/1QnWSTHUj95ZkpCW7dzpeFoO-WnHiJ9pF8EldCU9y61E/edit?gid=1105657443#gid=1105657443) 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 2 Unit 1 – Rational Numbers and Percentages, with a focus on the key concept of Logic, the related concepts of Equivalence, Quantity, Approximation, and Representation, and MYP Criteria A, C, and D.**