Information about the title: The repetition modules for grades 9 and 10, volumes 5 and 6, support preparation for the Intermediate School Certificate examination. The solutions are included in the booklet. Information about the series: What is the Math Workshop? This comprehensive teaching resource for grades 5 to 10 in secondary education has been completely redesigned and is already tested in practice. It incorporates both proven concepts and current research findings in subject didactics, as well as insights from teaching and learning research. Who is the Math Workshop suitable for? The Math Workshop is particularly suitable for heterogeneous groups of learners with diverse interests, ideas, and competencies. The teaching resource "picks them up" from their everyday lives, introduces them to new perspectives, and leads them to mathematical thinking, thereby accommodating different learning prerequisites.