# Probability Tools

##### This Probability Tools app also includes:

You call it, heads or tails? Whether you just need one coin to toss or something more interesting, such as multiple dice or a spinner to use, this app provides a number of interesting tools.

##### App Overview

The app Probability Tools contains three different tools to use in investigating chance events, or for general classroom use.

Tools:

• Coin toss
• Dice
• Spinner

There are a number of different adjustments one can make to the dice and spinner tools. The coin toss tool has fewer adjustments and only one coin.

Coin toss:

• Single coin only
• Touch coin to toss
• Tally of heads and tails recorded

Dice:

• Select number of dice (1 to 6 dice possible)
• Select value of each face
• Numbers 1 to 6 possible
• Can set dice to have the same number on multiple faces
• After a role, the tally of the values on each die is kept

Spinner:

• Select number of sections
• 2 to 6 sections possible
• Each section is a different color
• Select the number of degrees for each section (The sum must equal 360 degrees.)
• Change the direction of the spin to the left or right
• Tally of the results kept
• Custom spin is possible (You input a number of degrees to move the spinner)
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##### Instructional Ideas

Use these tools to conduct different experimental probability studies. Compare theoretical and experimental probability. Middle schoolers can explore a number of beginning probability activities. For example, after many rolls, create a two-dice frequency chart, graph results in a bar graph have them explain their results.

More advanced probability learners can make connections between geometry and differences in sector sizes on a spinner or investigate how changing the number of dice or numbers on the dice effect probability.

##### Classroom Considerations

• This tool makes running multiple experiments possible in a short period of time. The app keeps the tally for you, allowing users to concentrate on the outcomes.
##### Pros

• The spinner and dice toss have a number of useful customizations
• Customization of the tools is retained between uses (Can't save different customized settings)
##### Cons

• There is only one coin in the coin toss tool