Algebra - Find pairs of values (2) (Enumerate possibilities) - Starter

In a comprehensive Year 6 mathematics lesson focusing on algebra, students are tasked with finding pairs of values and working through a series of problems to enhance their understanding of enumeration and properties of shapes. The lesson begins with a 'Fluent in Four' revision exercise that challenges students to complete mathematical operations to match given fractions and mixed numbers. This activity serves as a warm-up to the main tasks of the day, which include finding the perimeter of a shape and solving for missing angles in a diagram, reinforcing their knowledge of geometry.

The algebraic component of the lesson requires students to apply logical thinking to find all possible pairs of whole numbers X and Y that sum up to 25. The criteria given are that X must be a one-digit odd number, and Y must be a two-digit even number. Through this exercise, students practice their addition skills and understanding of number properties to come up with the correct pairs, such as 1 + 24, 3 + 22, 5 + 20, 7 + 18, and 9 + 16. Additionally, students complete angle measurements in geometric figures, further developing their ability to work with degrees and understand the properties of angles. The lesson is designed to build fluency in mathematical reasoning and problem-solving, key skills for this stage of education.