Addition and subtraction - Find and make number bonds - Planning

The National Curriculum objectives for Year 2's Autumn Addition and Subtraction Week 5 are focused on enhancing students' fluency with addition and subtraction facts up to 20, and deriving related facts up to 100. The curriculum specifies the use of concrete objects, pictorial representations, and mental calculations to add and subtract two-digit numbers, as well as one-digit numbers and tens. Additionally, students are taught to recognize the commutative property of addition and the non-commutative nature of subtraction. Problem-solving skills are developed through the use of concrete and pictorial examples, which also aid in understanding the inverse relationship between addition and subtraction, essential for checking calculations and solving problems with missing numbers.

The lesson on finding and making number bonds starts with a recap of number bonds to 10, setting the foundation for exploring number bonds to 20. Students work systematically, often in pairs, to discover all possible combinations, using strategies such as counting on and fact families to solidify their understanding of place value. The lesson includes activities that involve using ten frames and part-whole models to visually represent and record number bonds. Reasoning and problem-solving exercises challenge students to apply their knowledge, identify patterns, and explore the relationship between number bonds to 10 and 20. Differentiated worksheets cater to varying levels of understanding, from working towards the expected level to achieving greater depth in the concept of number bonds.