Learning to sort objects by size is a basic and enjoyable preschool activity that reinforces early math and thinking abilities. In this Size Sorting Preschool Lesson Plan, children learn to recognise and sort objects into three simple categories: big, medium, and small. With hands-on activities, visual aids, and engaging stories, this lesson encourages observation, comparison, and decision-making in a meaningful and enjoyable way.
Age Group: 3–5 years
Theme: Math & Early Concepts
Focus Keyword: Size Sorting Preschool Lesson Plan
Duration: 30–40 minutes
Learning Objectives:
- Recognise and name size categories: big, medium, and small.
- Classify and sort objects by size.
- Develop comparison, classification, and observation skills.
Materials Needed:
Set of objects of varying sizes (e.g., balls, blocks, cups)
Size sorting mats with “Big,” “Medium,” and “Small” labels
Picture cards of animals, fruit, or toys of varying sizes
Storybook or song regarding sizes (optional for circle time)
Lesson Procedure:
1. Introduction (5–10 minutes):
- Begin with a short story or song about differences in size (e.g., “Goldilocks and the Three Bears”).
- Show three teddy bears or pictures to illustrate “big,” “medium,” and “small.”
- Ask the children: “Which bear is big? Which is small?”
2. Guided Practice (10–15 minutes):
- Show a collection of objects and discuss the differences in size.
- Show the size sorting mats and how to place each object on the correct mat.
- Let the children take turns picking an object and placing it in the right group.
3. Independent Activity (10–15 minutes):
- Provide children with a set of objects and have them sort them independently using mats.
- Ask them to explain why they placed each size category in its position.
Extension Activities:
- Art: Create a size collage using big, medium, and small magazine cutouts.
- Music & Movement: Sing and act out an action song like “This is Big, Big, Big.”
- Outdoor Play: Size scavenger hunt – find one big, one medium, and one small item outside.
Assessment:
- Ask questions and observe children as they sort objects.
- Use a checklist to mark if each child can identify and sort by size.
Reflection & Home Connection:
- Have children name one big, one medium-sized, and one little object at home.
- Send home a “Size Sorting Challenge” page for parents to try the activity at home with the child.
