Addition and Subtraction of Rational Numbers
Students will add and subtract rational numbers, including positive and negative fractions and decimals, solving multi-step problems.
Key Questions
- Explain how the rules for adding and subtracting integers apply to rational numbers.
- Analyze the importance of common denominators when adding or subtracting fractions, including mixed numbers.
- Construct a real-world problem that requires the addition or subtraction of both positive and negative rational numbers.
MOE Syllabus Outcomes
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
Planning templates for Mathematics
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
unit plannerMath Unit
Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
rubricMath Rubric
Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
More in Fractions and Decimals: Interconnected Concepts
Rational Numbers: Fractions and Decimals
Students will define rational numbers, understanding that fractions and decimals are different representations of these numbers.
3 methodologies
Comparing and Ordering Rational Numbers
Students will compare and order rational numbers (fractions and decimals, positive and negative) using various strategies.
3 methodologies
Multiplication and Division of Rational Numbers
Students will multiply and divide rational numbers (fractions and decimals, positive and negative), applying appropriate rules and strategies.
3 methodologies
Percentages: Conversions and Applications
Students will convert between fractions, decimals, and percentages, and apply percentages to real-world problems like discounts and interest.
3 methodologies
Ratio and Proportion: Introduction
Students will understand the concept of ratio, express ratios in simplest form, and solve simple problems involving direct proportion.
3 methodologies