Addition and subtraction within 20 - Related facts - Starter

In a vibrant lesson designed for Year 1 students during the Spring Term, pupils engage with a series of addition and subtraction activities within the number range of 20. The lesson starts with a 'Fluent in Four' revision exercise, where students are prompted to write the correct subtraction sentences based on given equations. For instance, they explore the result of doubling 5 and adding half of 0, as well as combining the numbers 8 and 9. Additionally, the children match numbers to a set of illustrated owls, reinforcing their understanding of correspondence in a fun and interactive way.

Further into the lesson, the students are presented with a practical problem involving a total of 13 yellow, blue, and red bricks. They are given the number of yellow and red bricks and are asked to deduce the quantity of blue bricks. This exercise not only tests their subtraction skills but also enhances their problem-solving abilities. The lesson includes a subtraction equation to fill in, helping the students visualise the problem numerically. In a delightful twist, the children also get to count the spots on a butterfly, adding an element of discovery and enjoyment to the learning experience. This multifaceted approach to addition and subtraction within 20 ensures that students are engaged and challenged throughout the lesson.