Ask the groups to combing all of the data to include on a class chart. Round the numbers to the nearest tens for ease in creating a circle graph. You may want to do this together on the board or an overhead projector. With this information, the students can predict the probability of selecting one color at random from a large bag. Discuss the results.
Probability is an important decision-making tool.
Teaching students to successfully use data from charts or graphs to predict probability will improve their decision- making skills. Get the students thinking in another direction. Write a creative essay about it. These lesson plans are the result of the work of the teachers who have attended the Columbia Education Center's Summer Workshop. CEC is a consortium of teacher from 14 western states dedicated to improving the quality of education in the rural, western, United States, and particularly the quality of math and science Education.