Difference between revisions of "Quadratic equations introduction to quadratic equation activity 3"
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==Developmental Questions (What discussion questions)== | ==Developmental Questions (What discussion questions)== | ||
Distinction between linear equations and quadratic equations. | Distinction between linear equations and quadratic equations. | ||
| + | #The quadratic equation graph is a distribution around x-axis. Can it be around y-axis? For it to be around y-axis how should the equation be? | ||
| + | #what does equal roots mean? with respect to distribution around x-axis? | ||
| + | #what does "c" represent? | ||
==Evaluation (Questions for assessment of the child)== | ==Evaluation (Questions for assessment of the child)== | ||
| Line 28: | Line 31: | ||
==Question Corner== | ==Question Corner== | ||
| + | #Does a linear equation (can a linear equation) also have a constant? | ||
==Activity Keywords== | ==Activity Keywords== | ||
'''To link back to the concept page''' [[Quadratic_equations]] | '''To link back to the concept page''' [[Quadratic_equations]] | ||
Revision as of 04:55, 5 January 2015
Activity - Understanding quadratic equation geometrically
Estimated Time
Half period (introducing Quadratic Equations)
Materials/ Resources needed
Prerequisites/Instructions, if any
Multimedia resources
Website interactives/ links/ simulations/ Geogebra Applets
Geogebra file created and shared by Ganesha Shettigar Sir, Asst Master, G.H.S Kalavara, Kundapura, Udupi, available here
Process (How to do the activity)
open the Geogebra file
- start with values of a=o, b=0, c=0
- change value of a to 1 (keeping b=0, c=0 and see what happens)
- change value of c to 1, 2, 3 etc (keeping a=1, b=0 and see what happens)
- change value of b to 1, 2, 3 etc (keeping a=1, c=0 and see what happens)
Developmental Questions (What discussion questions)
Distinction between linear equations and quadratic equations.
- The quadratic equation graph is a distribution around x-axis. Can it be around y-axis? For it to be around y-axis how should the equation be?
- what does equal roots mean? with respect to distribution around x-axis?
- what does "c" represent?
Evaluation (Questions for assessment of the child)
Discuss the nature of the graph in case of the different values of a, b and c and understand
Question Corner
- Does a linear equation (can a linear equation) also have a constant?
Activity Keywords
To link back to the concept page Quadratic_equations