Addition and subtraction within 20 - Add by making 10 - Starter

In this engaging lesson for Year 1 students, the focus is on mastering addition and subtraction within 20 by learning the strategy of 'Add by making 10'. The session begins with a 'Fluent in Four' revision exercise that encourages students to fill in the blanks to complete number sentences. They are also prompted to compare different representations to identify the odd one out and to recognise the number bond depicted in an accompanying picture. This starter activity sets the stage for the main lesson, which takes place in the third week of the Spring Term, on Day 1. The exercises include solving problems such as '7 + 6 =' and finding the sum of half of 10 plus another 10, which helps reinforce the concept of making 10 as a stepping stone to higher sums.

As part of the lesson, students are also tasked with comparing quantities using symbols for 'less than', 'equal to', and 'more than'. They count red and yellow counters, and combine these amounts to find the total number of counters. Through these activities, children develop a deeper understanding of number bonds and are encouraged to explore related number bonds on their own. By engaging with these exercises, students not only practice their arithmetic but also enhance their problem-solving and reasoning skills. The lesson is designed to be interactive and visually stimulating, with a clear emphasis on foundational numeracy that is crucial for young learners.