Introduction to a square and its properties

Concept #1. Introduction to a square and its properties

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• Estimated Time: 40 minutes
• Materials/ Resources needed: Laptop, geogebra file, projector and a pointer.
• Prerequisites/Instructions, if any

1. The students should have prior knowlede about line segments, angles and bisectors.

• Multimedia resources: Laptop
• Website interactives/ links/ / Geogebra Applets : This geogebra file has been created by ITfC-Edu-Team

• Process:

1. The teacher can use this geogebra file while teaching the properties of a square.
2. Can move the vertices of the square to depict the properties.

• Developmental Questions:

1. What type of lines is a square made of ?
2. What is a right angle ?
3. The lines meet at what angles ?
4. Compare the two diagnols.
5. What is the meaning of diagnols bisecting each other ?
6. What is angle bisection ?
7. What is the measure of each bisected angle ?
8. How many triangles do you see in the figure ?
9. What type of triangles are they ?
10. Identify the circumcircle and incircle ?

• Evaluation:

1. Can square be considered a rectangle ?
2. Is square a parallelogram ?
3. What is the difference between a square and a rhombus ?
4. Are all squares quadrilaterals ?

• Question Corner:

1. List the properties of a square ?
2. Can you add some more to the properties list ?