L6 Describe Volume

Help children develop an early understanding of volume with this practical Working Without Worksheets lesson for Year 1 Measurement. Designed for classrooms that prioritise hands-on exploration over worksheets, this engaging lesson helps pupils compare, describe, and reason about how much liquid is in a container using key mathematical vocabulary. The lesson begins with a recap starter, revisiting prior learning on capacity and introducing the concept of volume. Using real containers with different amounts of water, pupils learn that capacity means how much a container can hold, while volume means how much is actually inside. Through discussion and matching activities, children link key words such as full, half full, nearly full, and empty to real-life examples. During the teacher-led introduction, pupils compare images of containers and use stem sentences such as “___ has more juice than ” and “ has less juice than ___” to describe what they see. Misconceptions are addressed through visual reasoning — for example, when two containers appear the same height but one is wider, helping pupils understand that the wider one holds more liquid even if both look “half full.” In the main activity, pupils use real containers and water trays to explore and compare volume. They fill containers to different levels, decide which holds more or less, and adjust the amounts so containers have equal volumes. Children record their findings in their maths books through drawings and simple labels, keeping the focus on practical understanding. The plenary consolidates learning by showing images of containers with different water levels. Pupils order them from smallest to greatest volume, explaining their reasoning and applying new vocabulary confidently. What’s Included in the Pack? ✔ Full teacher planning with objectives, activities, and plenary guidance ✔ Starter: match real containers to vocabulary (full, half full, nearly full, empty) ✔ Vocabulary focus: volume, full, half full, n