IGCSE / O LEVELS MATH LESSON PLAN 1.6 – The Four Operations


Lesson 1: Operations with Integers

SectionDetails
ObjectiveUse addition, subtraction, multiplication, and division with integers, including negative numbers.
Activities– Starter (5 mins): Quick-fire “+ / – with negatives” practice (e.g., –3 + 5, –8 – 4). – Main (30 mins): Teach rules for operations with positive and negative integers. Work through examples step by step. Group practice on real-life examples like temperature changes. – Plenary (5 mins): Mini quiz on integer operations.
ResourcesWorksheets, number line, flashcards.
Time40 minutes: 5 (Starter) + 30 (Main) + 5 (Plenary).
HomeworkSolve 20 problems involving integer operations (mix of +, –, ×, ÷).
AssessmentWorksheet: operations with negative integers.
Past Paper PracticeQuestions involving addition and subtraction of negative numbers.

Lesson 2: Operations with Fractions and Decimals

SectionDetails
ObjectiveUse the four operations for calculations with fractions and decimals, applying correct order of operations and brackets.
Activities– Starter (5 mins): Quick recap of simplifying fractions. – Main (30 mins): Demonstrate addition, subtraction, multiplication, and division of fractions and decimals. Emphasize brackets and BIDMAS. Examples include improper fractions and mixed numbers. – Plenary (5 mins): Class activity solving a “BIDMAS puzzle.”
ResourcesWorksheets, calculator (for decimals), whiteboard.
Time40 minutes: 5 (Starter) + 30 (Main) + 5 (Plenary).
Homework10 fraction problems and 10 decimal problems using all four operations.
AssessmentWorksheet: mixed fraction and decimal operations.
Past Paper PracticeSimplify and calculate expressions with fractions/decimals and brackets.
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