Addition and subtraction within 20 - Add by counting on 2 - Starter

In a Year 1 classroom during the Spring Term, the second week's second day focuses on addition and subtraction within 20, specifically teaching children to add by counting on. The lesson starts with a 'Fluent in Four' revision activity, where pupils are encouraged to solve subtraction problems such as '20 – 8' and to think about numbers in relation to 20, like identifying 'eighteen – half of 20'. The children are tasked with writing a sequence of numbers starting from 5, and solving simple addition problems such as '5 + 3'. They are also asked to physically show 6 counters and then determine 'what is one more?' to develop their counting skills and understanding of number sequences.

The lesson continues with practical activities where students use counters to visually and tangibly calculate answers to questions like 'two less than eight' and 'two less than nine', reinforcing their subtraction skills within the number range up to 20. By engaging with these hands-on exercises, children become more confident in their ability to perform basic arithmetic operations and develop a stronger grasp of numerical relationships. The structured approach, with step-by-step guidance, ensures that the young learners can follow along and comprehend the foundational concepts of addition and subtraction in a supportive and interactive environment.