L7 3-Digit Column Addition, no exchanges

This Year 3 addition and subtraction resource is designed to support children in developing confidence with formal written methods, specifically column addition of 3-digit numbers. The lesson begins with a starter activity that revisits key place value learning from Year 3 place value objectives and the Year 2 summer term curriculum. Working in pairs, children answer quick-fire place value questions using whiteboards, helping to identify prior knowledge, address misconceptions, and warm up for the main learning. In the introduction, the teacher models how to add 3-digit numbers using a place value chart, emphasising the importance of lining up digits correctly in hundreds, tens and ones columns. Step-by-step examples demonstrate adding each column in order and highlight the need for accuracy and neat presentation. Children then complete guided examples with the teacher before attempting one independently with a partner—an ideal assessment point to check understanding before the main activity. During the practical activity, children use the column method to solve a series of addition questions. They select cut-up question cards and record each calculation in their maths books, drawing the column layout themselves. Some pupils may use place value counters or base-10 equipment to support their understanding of regrouping and place value. The plenary reinforces the learning objective by revisiting the correct order of addition and addressing common mistakes. Children discuss Zach’s incorrect calculation and identify how misaligned digits led to errors, encouraging reasoning and self-correction. Common misconceptions addressed include misalignment of digits, starting in the wrong column, and presentation issues that can lead to calculation mistakes. This resource supports mastery of Year 3 addition objectives and provides a structured, engaging progression from guided modelling to independent practice. It is suitable for whole-class teaching, small group interventions, o