IGCSE Physics tutors

A useful starting point is a question the learner attempted, including the working that went wrong. This lets the tutor distinguish a missing Physics idea from a problem with algebra, units or the wording of the question. These are examples of focused lesson goals, rather than a full syllabus checklist.

Consider this constructed question: a trolley speeds up uniformly from rest to 12 m/s in 4 seconds. How far does it travel? Its speed–time graph is a straight line rising from (0 s, 0 m/s) to (4 s, 12 m/s).

Multiplying 12 × 4 gives 48 m, but that assumes the trolley travelled at its final speed for all four seconds. It was moving more slowly before it reached 12 m/s.

Distance is the area under the speed–time graph. Here the area is a triangle, so distance = ½ × 4 s × 12 m/s = 24 m. A better answer gives that working and explains why the triangular area represents the journey.

For Cambridge Extended, add the numerical acceleration: the graph’s gradient is change in speed ÷ time, so acceleration = (12 − 0) ÷ 4 = 3 m/s². Cambridge Core includes finding distance from the area; this numerical acceleration calculation is Supplement content. Distance and acceleration answer different questions, even though they come from the same graph.

To check understanding, ask what a horizontal line at 12 m/s over those four seconds would mean: a constant speed, a rectangular area and a distance of 48 m. The learner should explain the changed motion as well as recalculate.

Practical preparation involves deciding what to measure, how to measure it and what the results justify. Cambridge’s Alternative to Practical still assesses practical skills; choosing a written option does not remove the need to understand experiments.

For a constructed pendulum example, suppose 10 complete oscillations take 15.0 s. The period is the time for one complete oscillation, so period = 15.0 ÷ 10 = 1.50 s. Writing 15.0 s as the period confuses the total timing with the quantity being measured. One complete oscillation returns the pendulum to the same position moving in the same direction.

Timing several oscillations makes the effect of starting and stopping the stopwatch smaller relative to the total measured time. Repeat the timing and compare the results before calculating a mean. If investigating how length affects the period, vary the pendulum length deliberately and keep other conditions, such as the release angle, consistent.

A useful follow-up changes the data: 20 oscillations take 32.0 s, giving a period of 1.60 s. Ask the learner to state the number of oscillations, show the division and attach the unit. A tutor can discuss diagrams, data and methods online; arrange hands-on practical experience through the learner’s school or centre.

Use the free introductory meeting to discuss the exact course, a recent piece of work and what the learner finds difficult. It is a conversation before paid lessons, rather than a full free teaching lesson. Ask about the tutor’s experience with that specification and how they would adapt an explanation for this learner.

Start with the current specification and the official sample or past papers for the learner’s code. The awarding-body links above identify the course and its requirements. Use questions on one topic while repairing a gap; introduce mixed and timed practice when the learner can work through the underlying ideas independently.

After marking, name the reason for each lost mark: an incorrect concept, an equation chosen without understanding, a unit error, an incomplete explanation or a practical conclusion unsupported by the data. Reattempt a related question later to see whether the correction transfers. Copying the mark scheme alone does not show that the learner can solve the next problem.

School feedback and official resources may be enough when a learner can identify and correct their own mistakes. Tuition is worth considering when they repeatedly get stuck at the same step or cannot see why an answer is wrong. Agree that specific purpose before adding more lessons.