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Which subject	Mathematics
What topic	Tangram
What length (min)	30
What age group	Year or Grade 4
Class size	20
What curriculum
Include full script
Check previous homework
Ask some students to presents their homework
Add a physical break
Add group activities
Include homework
Show correct answers
Prepare slide templates
Number of slides	5
Create fill-in cards for students
Create creative backup tasks for unexpected moments

Lesson plan

Lesson Plan: Tangram

Topic

Tangram

Objectives

• Students will understand the concept of tangrams and their origins.
• Students will be able to recognize and identify different geometric shapes.
• Students will develop problem-solving skills by creating their own tangram designs.
• Students will be able to cooperate and communicate effectively while working in pairs.

Materials

• Tangram sets (plastic or cardboard) for each pair of students
• Whiteboard and markers
• Worksheets with tangram puzzles
• Scissors and colored paper for creating original tangram shapes
• Ruler (optional)

Grade or Age Group

Grade 4

Subject

Mathematics

Class Size

20 students

National Curriculum Alignment

This lesson aligns with the Common Core State Standards for Mathematics, specifically focusing on geometry and spatial reasoning.

Lesson Structure

Step Number	Step Title	Length	Details
1	Introduction to Tangrams	5 min	Briefly explain what tangrams are and their history. Show an example and describe the shapes involved (triangle, square, parallelogram).
2	Shape Identification	5 min	Have students work in pairs to identify the seven pieces of a tangram set and discuss their properties. Use the whiteboard to note their observations.
3	Hands-On Activity	10 min	Distribute tangram sets to each pair. Ask students to recreate a simple shape or figure using their tangrams.
4	Creative Design	5 min	Each pair will design their own figure using the tangram pieces and create it using colored paper.
5	Group Sharing	3 min	Without presenting, have pairs display their tangram designs around the classroom. Circulate to observe and provide feedback.
6	Homework Assignment	2 min	Assign students to create a tangram puzzle at home using paper and to write about their experience in their journals. Explain that they will not present this in class.

Assessment

• Informal observation of student participation and collaboration during pair activities.
• Review of tangram designs and problem-solving approaches when circulating during the group sharing step.

Homework

• Create a tangram puzzle at home using colored paper and write a short reflection in a journal about the process and what was learned.

Conclusion

• Recap key takeaways about tangrams and geometric shapes. Encourage students to explore more shapes they can create with their tangrams as a supplementary activity at home.

Lesson script