Year 6: Four Operations: Lesson 11 – Common Factors

Year 6: Four Operations: Lesson 11 – Common Factors Support your Year 6 pupils in developing strong number sense with this curriculum-aligned lesson focused on identifying common factors. Through structured activities, learners deepen their understanding of factor relationships, reinforce multiplication knowledge, and build foundational reasoning skills. Learners will: Identify common factors between pairs of numbers—using times tables knowledge and factor lists. Apply factor-finding strategies (e.g., factor trees, Venn diagrams) to compare numbers efficiently. Solve contextual problems such as grouping, sharing, or dividing scenarios where common factors are key to determining outcomes (e.g., forming equal groups or simplifying fractions). Enhance mathematical reasoning by explaining their choice of factors and justifying methods used. Ideal for independent practice, guided lessons, or mastery sessions, this lesson lays the groundwork for robust understanding in number theory—supporting future work on multiples, prime numbers, and least common denominators.