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:

To demonstrate - Students work:
 * 1) How to on/off computer ?
 * 2) How to open Geogebra application ?
 * 3) How to use tools in Geogebra interface?
 * 4) How to create and Save a file in Geogebra ?
 * 5) How to plot and label points, draw line segments, draw line, draw rays ?

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

Developmental questions of the activity

 * 1) Why we use points? What does 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?
 * 8) Give examples for points, rays, segments and lines in our day-to-day life.
 * 9) How to represent line segments, rays and lines symbolically?

Refreshment activity :
Guess the word :
 * 1) Grouping the students(Each group has maximum 3 students)
 * 2) One student from each group pickup the word, and give 3 clues in a word to describe the vocabulary word that needs to be guessed by other group members
 * 3) The word to be guessed should not be told by the participant to other group members.

Evaluation of the activity
Worksheet-1: Points and Lines.pdf