GCSE_C3 Quantitative Chemistry_Lesson 2 Relative formula mass calculations

These WORKSHEETS with ANSWERS are aimed at Supporting SEN and EAL students doing GCSE work using TASK-BASED structure and EASE of FEEDBACK

Students are introduced to the concepts of relative formula mass (Mr) and percentage by mass in compounds, aligned with key learning objectives in chemistry.

What’s Inside?

1. Learning Objectives & Core Questions: Drive curiosity with focused questions that build foundational knowledge in chemical reactions and mass calculations.

2. DO NOW/ Retrieval Tasks: Engage students right from the start with quick, targeted questions to reinforce prior knowledge and assess readiness.

3. Keywords & Definitions: Strengthen terminology with a keyword matching activity, ensuring students understand essential vocabulary like “Relative Formula Mass (Mr),” “Reactants,” and “Conservation of Mass.”

4. Detailed Walkthroughs with Examples: Easy-to-follow explanations and examples that break down complex calculations, including calculating Mr and using it to determine percentage by mass in compounds like NaCl, H₂SO₄, and CO₂.

5. Guided Practice & Independent Tasks: Move students from guided examples to independent problem-solving, perfect for collaborative or solo work. Includes step-by-step Mr calculations and percentage by mass exercises to solidify skills.

6. Gap Fill Activities & Mini Whiteboard Quizzes: Reinforce learning with interactive gap fills and quizzes that check comprehension and build confidence in real-time.

7. High-Quality Exam Practice: Challenge students with multiple-choice and extended-response exam questions to test understanding and prepare them for assessments. Includes answers for quick teacher feedback.

8. Reflection & Self-Assessment: Encourage students to reflect on their learning and identify areas for improvement, promoting self-driven progress.