Coin Toss

This aplet lets the student use a statistical simulation to model the common fund raising activity of tossing a coin onto a grid of squares. The user can accumulate experimental probabilities for a square size of 10cm and differing coin diameters.  The curve fitting facilities of the aplet can then be used to find a rule giving the probability p for a given diameter d.
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Dandelions

The Poisson distribution is used when randomly allocating n units into m packets.  In this case the aplet models the allocation (sowing) of 200 or more dandelion plants into a 10 by 8 patch of soil.squares. This patch of soil is then divided up into 80 plots (1 by 1) and the number of dandelion plants in each plot is recorded.Once these results are graphed as a histogram the user has the ability to superimpose, as a frequency polygon, the expected results according to either the Binomial or the Poisson distributions, allowing comparison between the two distributions as to which is the better predictor.
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Transformer

This aplet lets the student investigate geometric transformations using matrices.
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The user can examine the effect of various 2x2 matrices on the shapes provided.  Needs guidance from the teacher.

Note:  This aplet can easily be produced without programming by simply modifying the Parametric aplet.  Click here for an article on how to do this.

Linear Explorer

This aplet lets the student explore the relationship between the values of m and c in the equation y=mx+c, and the shape of the resulting linear graph, with the equation displayed on the screen.
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A student worksheet is provided which encourages the student to investigate this relationship.
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Indices Practice

This aplet provides simple drill practice for students learning the laws of indices, with the option of including negative powers.  It presents students with practice problems in correct mathematical layout and then allows them to enter the simplified answer. There are a wide variety of styles of problem. It will then tell them if they are right or wrong, offering a second chance if needed. Unfortunately it dooes not give the correct answer if they fail both tries :-(
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