Difference between revisions of "Slope of parallel and perpendicular lines"
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==Activity Keywords== | ==Activity Keywords== | ||
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[[http://karnatakaeducation.org.in/KOER/en/index.php/Co-ordinate_geometry Back to Co-ordinate geometry Page Link]] | [[http://karnatakaeducation.org.in/KOER/en/index.php/Co-ordinate_geometry Back to Co-ordinate geometry Page Link]] |
Revision as of 06:11, 14 August 2015
Activity - Name of Activity
Parallel lines have the same slope and slope of perpendicular lines are the negative reciprocals of each other
Estimated Time
1 Hour
Materials/ Resources needed
Geogebra applet
Prerequisites/Instructions, if any
- Students should know that every line is a representation of an equation /relation between variables
- Graphing an equation/producing equation by visualising graph
- Students should know what is Slope?
- Similarity of two triangles
Multimedia resources
Website interactives/ links/ simulations/ Geogebra Applets
Process (How to do the activity)
Play with the following Geogebra applet
Developmental Questions (What discussion questions)
- Move the Blue points observe the changes
- record the Slopes of two lines
- Compare the values
Evaluation (Questions for assessment of the child)
Can we prove that the given triangle is Right angled triangle?