Graph parabolas by hand and using digital technology

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Edit   Delete - Last Modified By: BJO at 15/11/2013 2:51:45 PM
Check out the following page, which is an introduction on how to draw a quadratic graph, by using sets of x and y values.  It demonstrates the basic shape of a quadratic graph: the Parabola.
Edit   Delete - Last Modified By: BJO at 14/11/2013 8:21:29 PM
Have a play with the application on this website, and read about how to draw quadratics:
Edit   Delete - Last Modified By: BJO at 18/11/2013 10:16:07 AM
The link below is to a document that shows you how to quickly sketch quadratic equations.
Edit   Delete - Last Modified By: dsi at 13/12/2013 9:50:05 AM
Edit   Delete - Last Modified By: BJO at 14/11/2013 8:23:49 PM
By recognising the different forms of a quadratic, you can employ different methods in order to draw graphs of them.  Here is a website that explains how to do this.
Edit   Delete - Last Modified By: BJO at 18/11/2013 10:14:52 AM
The document below is both a refresher on quadratic equations, and a guide on how to sketch them.
Edit   Delete - Last Modified By: BJO at 15/11/2013 3:04:40 PM

Log in to Manga High  (www.mangahigh.com) and go to 'mytodolist' tab.  Please attempt the following challenges:

  • Drawing quadratic curves

Go to Mangahigh

Edit   Delete - Last Modified By: BJO at 19/11/2013 9:55:54 AM
Also, please try the following worksheet.
Edit   Delete - Last Modified By: BJO at 16/11/2013 11:34:21 AM
The following link is to a website that start from basics and goes all the way to graphing parabolas given some points on the curve.  There is a quadratic equation explorer on the page in which you can try out different values of coeffiecients and constant in y = ax2 + bx + c form.  There is also a quiz at the end which you might like to try.
Edit   Delete - Last Modified By: BJO at 18/11/2013 10:18:18 AM
The lesson  on manually sketching quadratic equations is in the following powerpoint presentation:
Edit   Delete - Last Modified By: BJO at 18/11/2013 1:09:17 PM
The following is a link to the Geogebra Installer (inside a zipfile) - download it, unzip it, and then run it to install Geogebra on your computer.