We finished the mock exam with mostly correct answers. I also advised Geoffrey that exam makers tend to make the questions confusing and awkward, and steps to comb through the odd wording.

Got a little stuck on special relativity and some questions on electromagnetism (to be expected as it is worded awkwardly), but we got through in the end.

He was able to work through the questions after some demonstrations and explanations of content.

Had some minor issues with probability and understanding of PDFs and CDFs and finding the bounds of probabilities.

He was able to go through the whole 2022 papers with little trouble. However, I will advise that externals can be vastly different every year.

Nothing of significant concern for now, aside from the fact that external exam makers tend to be unpredictable and don't assess a lot of topics.

Most topics are breezed through with ease, and he has been referring to his notes, textbook, and data book, which is a good sign.

Subjects of difficulty is usually around the more difficult part of vectors, differentiation, and mathematical induction.