Shape Show and Tell

Overview

Lesson 7 of 8 in Exploring 2D Shapes Fun. Students share a safe object from home that represents a familiar 2D shape, then identify, name and describe the shape they can see. The lesson consolidates previous learning about circles, triangles, squares and rectangles and prepares students to create and explain a shape picture in the final lesson.

Learning intentions

Students will:

• recognise familiar 2D shapes in everyday objects
• name circles, triangles, squares and rectangles
• describe a shape using features such as sides, corners and curved edges
• explain why an object represents a particular shape
• listen and respond respectfully during show and tell

Success criteria

• I can name the shape I can see in an object.
• I can describe some features of the shape.
• I can explain why I chose or brought the object.
• I can listen while someone else shares.

Curriculum links

• Familiar shapes — sorting, naming and creating shapes.
• Recognising and describing familiar shapes within objects in the environment, giving reasons.
• Using shapes in everyday contexts and explaining how shapes have been identified.
• General capabilities: communication, critical and creative thinking, and personal and social capability.

Lesson structure (45 minutes)

1. 0–5 min · Welcome and safety check. Open with the hook and learning intention slides and show a collection of everyday objects, such as a plate, book, sign and toy block. Students turn and talk about the shapes they can see; the teacher checks each brought object is safe, clean, small enough to handle and not valuable or breakable. Keep any unsuitable object beside the teacher and use a photograph or verbal description instead.

2. 5–10 min · Shape language recap. Use the shape recap slides to review circle, triangle, square and rectangle. The teacher models: “This plate is not a flat circle, but its face has a circle shape”; students trace an imaginary outline with a finger and practise saying, “I can see a ___ because it has ___.”

3. 10–15 min · Model show and tell. Demonstrate with one object, thinking aloud: “I brought a book. The front is a rectangle. I can see four straight sides and four corners. I chose it because the cover has a rectangle shape.” Students identify the shape and suggest one reason. Briefly clarify that an object may contain more than one shape.

4. 15–30 min · Small-group show and tell. Arrange students in five groups of five. Give each student approximately two minutes to show the object, name the shape, describe one feature and explain their choice. Peers use the prompts on the shape show-and-tell recording sheet to draw or mark the shape they heard and record one describing word; students may dictate their response to an adult or peer. Circulate, prompt complete sentences and photograph or sketch objects that cannot be handled.

5. 30–37 min · Class shape sort. Invite groups to place or point to their objects in four classroom areas labelled circle, triangle, square and rectangle. Use the sorting discussion slides to ask: “Where should this object go? What is your evidence?” Students help sort objects, noticing that colour, size or orientation does not change the shape. If an object includes several shapes, students may place it in more than one group or explain which part they are describing.

6. 37–42 min · Share and compare. Select four or five varied objects for a whole-class discussion. Students compare two objects using sentence frames: “Both have a ___ shape”; “This shape is different because ___.” The teacher records children’s observations, accepting informal language while modelling precise terms such as side, corner, straight and curved.

7. 42–45 min · Exit reflection. Complete the final prompt on the shape show-and-tell recording sheet: students draw an object in the classroom and circle or tell an adult its shape. Invite two students to share. Preview that next lesson they will use familiar shapes to create and explain a picture.

Resources

• the Shape Show and Tell slide deck
• the shape show-and-tell recording sheet
• Safe student-brought objects or photographs
• Four large labels: circle, triangle, square and rectangle
• Open floor or table space for sorting
• Pencils, crayons and clipboards
• Optional phone or tablet for photographing objects

Assessment

• During modelling and group sharing, listen for accurate shape names and reasons based on visible features, rather than colour or object name alone.
• Record observations of students who can identify sides, corners, straight or curved edges, and students requiring prompts or visual support.
• Use the exit reflection to check whether each student can connect an everyday object with a familiar 2D shape.

Differentiation

• Support students with real shape examples, large visual labels, gesture prompts and sentence starters: “I see a ___”; “It has ___”; “I know because ___.”
• Allow students to point, draw, use a communication device, rehearse with a partner or dictate their explanation. Pair students strategically and provide an adult-supported sharing option.
• For EAL learners, model and repeat shape names with actions and visuals; accept home-language discussion before sharing in English.
• Extend confident students by asking whether their object contains more than one shape, or whether two objects have the same shape but different sizes or orientations.