Quad Explorer aplet
A great many more teaching aplets can be found at HP’s web site and other web sites created by educators, together with accompanying documentation, often with student work sheets. These can be downloaded free of charge and transferred to the hp 39g+ using the separately supplied Connectivity Kit.
The Quad Explorer aplet is used to investigate the behaviour of y = a(x + h)2 + v as the values of a, h and v change, both by manipulating the equation and seeing the change in the graph, and by manipulating the graph and seeing the change in the equation.
H I N T More detailed documentation, and an accompanying student work sheet can be found at HP’s web site.
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Explorer, and then press |
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aplet opens in |
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mode, in which the arrow |
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keys, the |
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and the |
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graph. This changing shape is reflected in the equation displayed at the top right corner of the screen, while the original graph is retained for comparison. In this mode the graph controls the equation.
It is also possible to have the equation control the graph.
Pressing 
displays a
Pressing the 
and 
key moves between sub- expressions, while pressing the 
and 
key changes their values.
Pressing 
allows the user to select whether all three
Getting started |