I may be missing something rather obvious here, but I've read the article three times, and can find no reference to 'coaching' or 'after-school tutorials' at al

I may be missing something rather obvious here, but I've read the article three times, and can find no reference to 'coaching' or 'after-school tutorials' at all here. Are they mentioned elsewhere? As a former teacher, here is an example lesson plan: AGE GROUP: Year 5 TOPIC: Introducing prime numbers STARTER: Mixed multiplication table questions on board. MAIN ACTIVITY: Write the number 92 on the board. Ask students whether '92' appears in any multiplication table. When the answer '2' is received, stress that multiplication tables do not end at 10 or 12, but continue on indefinitely. Repeat for the numbers '999', '186', and '495'. Next, write the number 71 on the board. Students will conclude that it does not appear in any 'tables'. Explain that it does, offering a reward for the first correct answer. With or without hinting, get the answer '1' or '71'. Offering a second reward, get the second of the pair. Explain that every whole number is in the 'one' times table and the 'itself' times table. However, such numbers are called 'prime' if those are the only ones. Ask students to name other prime numbers below 50, discussing suggestions. Complete is_it_prime.doc. Students who finish quickly should attempt is_it_prime_2.doc. That's not meant to be particularly inspiring or anything, just representative. As a teacher, you have a legal obligation to have such a plan for every lesson you teach (this was true in the UK, can't speak for other countries).