Difference between revisions of "Quadratic Equation solution activity1"
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m (Girija moved page Quadratic Equation activity1 to Quadratic Equation solution activity1) |
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=== Process (How to do the activity) === | === Process (How to do the activity) === | ||
| − | {{Geogebra|gpxgugb9}} | + | {{Geogebra|gpxgugb9}}'''Procedure:''' |
| + | |||
| + | The general form of quadratic equation is ax²+bx+c=0,where a, b, c are known values, x is variable and a≠0.This equations can also occur in different forms such as ax²+bx=0, ax²+c=0 and ax²=0. | ||
# open the Geogebra file | # open the Geogebra file | ||
| − | ## | + | ## Start with values of b=0, c=0 |
| − | ## | + | ## In quadratic equations why is a≠0? What happens to the quadratic equation, if a=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) | ||
# In each of the above cases, discuss with students the meaning of the curve plotted and how the curve changes on change in values. | # In each of the above cases, discuss with students the meaning of the curve plotted and how the curve changes on change in values. | ||
| + | # Identify and note down the roots of the given set of values for a, b, c in quadratic equations. | ||
=== Evaluation at the end of the activity === | === Evaluation at the end of the activity === | ||
Go back to the page - [[KVS Algebra|click here]] | Go back to the page - [[KVS Algebra|click here]] | ||
Revision as of 07:09, 30 August 2020
Objectives
Estimated Time
Prerequisites/Instructions, prior preparations, if any
Materials/ Resources needed
Click here to open the file
Process (How to do the activity)
Download this geogebra file from this link.
Procedure:
The general form of quadratic equation is ax²+bx+c=0,where a, b, c are known values, x is variable and a≠0.This equations can also occur in different forms such as ax²+bx=0, ax²+c=0 and ax²=0.
- open the Geogebra file
- Start with values of b=0, c=0
- In quadratic equations why is a≠0? What happens to the quadratic equation, if a=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)
- In each of the above cases, discuss with students the meaning of the curve plotted and how the curve changes on change in values.
- Identify and note down the roots of the given set of values for a, b, c in quadratic equations.
Evaluation at the end of the activity
Go back to the page - click here