Worked-solution packs, S1 to S6

What each pack includes

• Step-by-step worked solutions for the main question types of every unit, each with a “Watch out” note on the mistake that costs marks.
• Exam-style questions with full marking schemes: 4 per unit for S1–S3, 6 per unit for S4–S6.
• A thinking-skills question per unit, climbing the Bloom levels from Remember to Create.
• Key formulas for every unit and a list of common mistakes that cost marks.
• National exam practice for S2, S4 and S5; two full mock national exams with marking schemes for S3 and S6.
• A PDF you can read on a phone or print.