Introduction to Geogebra and Points, Lines and segments

Objectives

1. To get acquainted with digital tool
2. To visualize geometrical figures with real life situations
3. Introduce children to the concept of points, line, ray and segments

Estimated Time

80 minutes

Refreshment activity related to language - 15 minutes

Introduction to Geogebra - 15 minutes

Hands-on Activities in Geogebra on points, lines and segments with demonstration - 30 - 40 minutes

Worksheet distribution - 5 minutes

Prerequisites/Instructions, prior preparations, if any

Prior understanding of Edges, corners and shapes

Materials/ Resources needed

• Digital : Computer, geogebra application, projector.
• Non-digital : Worksheet and pencil.

Process (How to do the activity

Teachers work:

Demonstration of

1. How to create PDL in computer
2. How to open Geogebra application
3. Explain about Geogebra interface
4. How to create and Save file in geogebra
5. How to plot points, draw line segments, draw line, draw rays

Students work:

1. Plot 10 points and Name it as A, B, C, D, E, F, G, H, I, J.

2. Draw 5 line segments - AB, BD, DE, FG, AH

3. Draw 5 lines - BC, EF, AE, DG, GI

4. Draw 5 rays - OB, FD, KL, BE, RC

Create PDL with their Names and save all files in it.

Evaluation at the end of the activity

1. Why we use points? What is point indicate?
2. Are all points are in the same place?
3. Do you think you can draw a complete picture of a line? Why?
4. Can you measure the line?
5. A minimum of how many points are required to fix a line.
6. How many points can be plotted on a line?
7. How many segments can be on a line?