This guide was designed to help teachers use an adjustable spinner to explore probability. The guide shares a weblink to a free digital manipulative, instructions for using the manipulative, suggested uses, example questions (easy, medium, hard), and answer keys. Students are asked to determine the probability of a given color on a given spinner and to create spinners to reflect a given probability. Questions are also included that ask students to choose numberlines that reflect given probabilities.
Common Core Standards Addressed:
CCSS.Math.Content.7.SP.C.5 Understand that the probability of a chance event is a number between 0 and 1 that expresses the likelihood of the event occurring. Larger numbers indicate greater likelihood. A probability near 0 indicates an unlikely event, a probability around 1/2 indicates an event that is neither unlikely nor likely, and a probability near 1 indicates a likely event.
CCSS.Math.Content.7.SP.C.6 Approximate the probability of a chance event by collecting data on the chance process that produces it and observing its long-run relative frequency, and predict the approximate relative frequency given the probability. For example, when rolling a number cube 600 times, predict that a 3 or 6 would be rolled roughly 200 times, but probably not exactly 200 times.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License