Changes

===Objectives===

===Objectives===

#The secant is a line passing through a circle touching it at any two points on the circumference.

#The secant is a line passing through a circle touching it at any two points on the circumference.

#A tangent is a line toucing the circle at only one point on the circumference.

#A tangent is a line touching the circle at only one point on the circumference.

===Estimated Time===

===Estimated Time===

40 minutes

30 minutes

===Prerequisites/Instructions, prior preparations, if any===

===Prerequisites/Instructions, prior preparations, if any===

===Materials/ Resources needed===

===Materials/ Resources needed===

Laptop, geogebra file, projector and a pointer.

* Digital : Computer, geogebra application, projector.

 

* Non digital : Worksheet and pencil, compass, strings

* Geogebra files :  Lines in a circle.ggb 

===Process (How to do the activity)===

===Process (How to do the activity)===