Shapes that are congruent

Objectives
To understand how the shapes are congruent

Prerequisites/Instructions, prior preparations, if any
Prior knowledge of point, lines, angles, parallel lines, closed figure

Materials/ Resources needed

 * Digital : Computer, geogebra application, projector.
 * Non digital : Worksheet and pencil,6-8 strings (preferably in different colors)
 * Image files :
 * “F-pentomino_Symmetry.svg”
 * “L-pentomino_Symmetry.svg”
 * “Congruence class image7.png”
 * “Congruence class image8.png”

Process (How to do the activity)
Use image files - “5. F-pentomino_Symmetry.svg”,“6. L-pentomino_Symmetry.svg”, “7. Congruence class image7.png” Use image file - “8.Congruence class image8.png” Evaluation at the end of the activity
 * Are the things in the picture same?
 * Which among them are same? Children can point out shapes that are same
 * How can you say they are same?
 * An example of how palms are same can be discussed, how can you place your palms to say that they are same
 * HW. Make figures from sets of 5 squares: Cut out 5 squares of 1cm each with a newspaper. Try to make different shape with the 5 squares.How many different shapes are possible? (Stick in you note books any one of the combinations)
 * Name all the shapes in the picture.
 * Point out figures that are of same shape.
 * What about their size?
 * Find figures that are exactly same.
 * What do you call two things that are exactly same. What are the parameters that are required for two things to be exactly same(shape and size)?
 * Establish concept of congruence and define the concept
 * Students should be able to define congruence and identify shapes that are congruent