Addition and subtraction within 20 - Subtraction crossing 10 - Starter

In the early stages of mathematics education, specifically targeting Year 1 students during the Spring Term, a lesson is crafted to enhance their addition and subtraction skills within the number range of 20. The lesson features a 'Fluent in Four' revision section, which is designed to quickly assess and reinforce students' numerical fluency. This part of the lesson begins with simple arithmetic problems such as finding half of 12 and then adding 5, or adding together single-digit numbers like 9 and 8. The aim is not only to practice addition but also to introduce the concept of halving numbers and combining the results with additional sums.

Another engaging activity presented in the lesson is the comparison of numbers. Students are encouraged to add pairs of numbers and then compare the sums, determining which is greater or less than the others. This exercise helps to develop their understanding of numerical value and the concept of magnitude. Furthermore, an interactive element is introduced where children must identify a plate with a specific number of dots—in this case, five—enhancing their counting and recognition skills. The variety of tasks within this lesson is designed to create a dynamic and interactive learning environment that caters to the different aspects of foundational arithmetic for young learners.