Only €29/$39Tangram (lesson)
From Algodoo
[edit] TANGRAM
| Target |
Teacher: Key Stage 1 |
| Time frame |
30-60 min |
[edit] Description
In this lesson students will create a tangram puzzle and work with different shapes. Build new shapes and investigate how the shapes are related to each other. The areas of the tans are given by Algodoo but can also be calculated as an exercise.
[edit] Learning objectives
- Use spatial memory skills.
- Use spatial visualization skills.
- Learn geometric shapes.
- Apply flips, slides and turns to geometric shapes.
[edit] In class
Ask if anybody knows what a tangram is. Draw a square on the board and create the pieces, tans, by drawing the five lines with help from the students. Discuss what different shapes that appear. Discuss the concept of area. Discuss how the tans are related to each other. Discuss how this can be visualized and explored in Algodoo using the Classmate PC. Let the students create scenes in Algodoo using the suggestions you came up with together or let them use their own ideas. Help the students make decisions and ask guiding questions. Encourage the students to follow the procedure Create – Predict – Interact – Evaluate. Allow the students to follow-up and share their experiences in class after the simulation.
Create a scene
Turn on the grid and create a square with a side of 10 grid squares. Use the knife tool and cut the square in the seven tans. Use an ordinary ruler to make straight lines. Start with the diagonal cut followed by the cut between the middles of the square side.
Make a prediction
Is it possible to make different tangram shapes using all the tans? What is the area of each tan? Is it possible to mirror a shape?
Run/Interact
Run the simulation and watch the tans fall. Turn off the grid and pause the simulation. Move and rotate the tans in order to build shapes. Build a square, a rectangle and create new shapes.
Evaluate
What are the relations between the areas of the different tans?
