This fully-resourced lesson will prepare students for the range of mathematical-based questions that they may face on Paper 2 & 4. It is specificallly designed for students who have studied the Extended subject content (Core & Supplement) as detailed on the CIE IGCSE Chemistry specification. The lesson contains a wide range of activities which includes 8 quiz competition rounds spread across the duration of the lesson to maintain engagement whilst the students assess their understanding.
The mathematical skills covered in this lesson include:
- Calculating the number of sub-atomic particles in atoms and ions
- Writing chemical formulae for ionic compounds
- Identifying isotopes
- Using Avogadro’s constant to calculate the number of particles
- Calculating the relative formula mass
- Calculating amount in moles using the mass and the relative formula mass
- Balancing chemical symbol equations
- Calculating reacting masses
- Gas calculations using molar volume
- Calculating concentration of solutions
- Titration calculations
- Deducing the empirical formula
- Calculating energy changes in reactions
Most of the resources have been differentiated two ways to allow students of differing abilities to access the work whilst still being challenged. In addition, step by step guides are used to demonstrate how to carry out some of the more difficult calculations such as the harder mole calculations and calculating masses in reactions.
Due to the extensiveness of this lesson, it is estimated that it will take in excess of 3 teaching hours to complete all of the tasks and questions
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Thank you so much for this, it really helped me as a non-specialist chemist.
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