G9 Teaching Progress

In Grade 9 Chemistry, students systematically studied energy changes in chemical reactions—enthalpy change (ΔH). Through a combination of theoretical explanations and experimental observations, they first learned to distinguish between endothermic and exothermic reactions. Real-life examples were used to help students connect theory with practical applications.

For quantitative calculations, students learned the bond energy method: by comparing the total energy absorbed in breaking reactant bonds with the total energy released in forming product bonds, they applied the formula ΔH = Σ(bond energies of reactants) – Σ(bond energies of products) to calculate reaction enthalpy (ΔH). They also understood how the sign of the result correlates with endothermic/exothermic reactions.

Strengthen Foundations: It is recommended that students use their spare time to review systematically, consolidating core concepts and principles to lay a solid foundation for answering structured questions.

Simulate Real Exam Situations: Encourage students to take mock exams seriously, adapt to the exam rhythm, and improve their answering speed and accuracy.

Reflect on Mistakes: Establish a notebook for recording wrong answers, review them regularly, analyze the reasons, and avoid repeating the same mistakes.

Adjust Mindset: Maintain a positive and optimistic attitude, balance rest and study time to avoid excessive anxiety affecting exam preparation effectiveness.

Let's join hands to help students successfully pass the A-Level exams and embark on a broader future!