L13 – WWW – Reception One Less

Working Without Worksheets – Reception Maths: One Less Introduce your Reception pupils to the concept of one less with this Working Without Worksheets lesson. Children explore the relationship between consecutive numbers by taking away one from a set, using counting bears, fingers, cubes, toys, and natural objects. Through practical activities and oral rehearsal, pupils build a deep understanding of what it means for a number to be “one less”. The lesson begins with a starter activity: Count back together from 10 to 1 as a class. Ask children to show a number of fingers (e.g. 4). Then ask them to put one finger down. Together, confirm: “One less than 4 is 3.” In the main input, the teacher models the “one less” relationship with counting bears. Children count the bears together, assigning a numeral to each. The teacher then removes one bear and confirms how many are left, emphasising the “one less” relationship without starting the count again. For the independent activity, pupils explore one less in different contexts: Counting Towers: choose a numeral card, build a tower with that many cubes, take one away, and say how many are left. Toy Line Up: line up a chosen number of toys, remove one, and count how many remain. Nature Numbers: collect leaves, sticks, or pebbles, group them, then take one away to find one less. The plenary brings the class back together for a quick-fire game: the teacher calls out a number, and children respond with “one less”. For example: Teacher: 7 — Children: 6. This reinforces fluency and ensures every child practises the skill orally. What’s Included in the Pack? ✔ Full teacher planning with objectives, modelling, and plenary questions ✔ Starter: count back from 10 and explore one less with fingers ✔ Teacher modelling: using counting bears to show “one less” ✔ Vocabulary focus: one less, take away, fewer, next, number, count ✔ Practical tasks: Counting Towers, Toy Line Up, Nature Numbers ✔ Independent recording through oral reas