# data[].attributes.body
An interactive technological tool that provides teachers and students with an adaptable spinner. This will allow teachers to easily provide students with individualized spinners for probability projects without the need for hand-making them.

# data[].attributes.attachment_link.readable_text
Create a spinner of your choosing. Add or delete sectors, change their sizes and colors, go wild.

Make sure the Number of Spins is 1, and click the Spin button.

How does the experimental probability compare to the theoretical probability?

Click the Spin button a few more times. What happens?

Change the Number of Spins to 100, and click the Spin button.

How do the experimental and theoretical probabilities now compare?

Hit the Spin button a few more times. What happens?

What would you expect to happen if you hit the button many times?

Increase the Number of Spins to a very large number (the maximum allowed is 99,999).

Hit the Spin button one or more times?

Now compare the theoretical and experimental probabilities. What do you notice?

Was your prediction correct?

# data[].attributes.attachment_link.description
Create a spinner of your choosing. Add or delete sectors, change their sizes and colors, go wild. Make sure the Number of Spins is 1, and click the Spin button. How does the experimental probability compare to the theoretical probability? Click the Spin button a few more times. What happens?

# data[].attributes.body
A collection of data focusing on the probability of hurricanes in different locations and in different matters. Useful in either creating an activity or teaching how an event can become more likely depending on specific factors.

# data[].attributes.attachment_link.description
The United States landfalling hurricane web project has been co-developed by William Gray's Tropical Meteorology Research Project at Colorado State University and the GeoGraphics Laboratory at Bridgewater State University.

# data[].attributes.body
A lesson plan focusing on students discovering: explore probability of an event through likely outcomes, consider how equally plays a role in fairness, explore the law of large numbers in variation.

# data[].attributes.body
An activity that allows students to create their own bag of tiles, allowing them to control how an event is probable in terms of their individual bags.

# data[].attributes.body
An activity that, while requiring the creation of a spinner, creates instances of events that may or may not be fair and students must play in order to determine the result.

# data[].attributes.body
An activity page that focus on building students perception on understanding probability that includes two or more events.

# data[].attributes.body
An activity page that takes students through a prediction game that focuses on what results are more possible or impossible to players.

# data[].attributes.headline
National Library of Virtual Manipulative

# data[].attributes.subject
National Library of Virtual Manipulative

# data[].attributes.body
A comprehensive library of manipulatives that focus on probability from grades K12.

# data[].attributes.attachment_link.readable_text
Data Analysis & Probability (All Grade Bands)

Virtual manipulatives for Data Analysis & Probability.
Data Analysis & Probability (Grades Pre-K - 2)Data Analysis & Probability (Grades 3 - 5)Data Analysis & Probability (Grades 6 - 8)Data Analysis & Probability (Grades 9 - 12)

# data[].attributes.attachment_link.title
NLVM Data Analysis & Probability Manipulatives

# data[].attributes.attachment_link.description
NLVM manipulatives for Data Analysis & Probability

# data[].attributes.body
An interactive activity that allows students to explore the experimental and theoretical probably of randomness and probability regarding marbles in a bag.

# data[].attributes.attachment_link.readable_text
Launch Tool
This is an interactive activity in which the randomness and probability of marbles being pulled out of a "bag" are calculated automatically and for trials up to 500. In short, you will be able to see how the experimental probability more accurately reflects the theoretical probability when larger numbers of trials are conducted (as compared to a few).

The Marble Mania screen has three main sections, one on the left side of the screen where you can choose the number of different colored marbles in the bag plus the number of marbles to draw and the number of trials to run. The right side of the screen has two sections. The top section graphically shows the number of times a certain color was picked (either as a bar or pie chart), while the bottom section depicts the frequency.

Going Further

For Educators
Send us feedback about this Tool >

# data[].attributes.attachment_link.description
Launch Tool This is an interactive activity in which the randomness and probability of marbles being pulled out of a "bag" are calculated automatically and for trials up to 500. In short, you will be able to see how the experimental probability more accurately reflects the theoretical probability when larger numbers of trials are conducted (as compared to a few).

# data[].attributes.body
An activity worksheet that uses literature, poems, or even songs to help students dictate whether a occurrence is possible or impossible.