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Bell Curve Teacher Resources
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Learners explore averages by completing a data analysis activity. In this bell curve instructional activity, students measure different food items and plot their measurements on a X and Y axis. Learners create bell curves around the average weight or length of the specific food item and explain averages occur in all types of statistics.
Students construct two bell curves using two different yet related objects. For example, two kinds of Hershey's Kisses (plain and almond) or two kinds of dried beans (kidney and lima).
Students explain normal distribution of a measurable characteristic within a group of objects. They create two graphs (one for each type of Hershey's Kiss) with increments of measurement on the X-axes and number of measurements on the Y-axes.
Students explore the concept of the bell curve. For this bell curve lesson, students discuss the controversy associated with the bell curve. Students use an applet to explore a normal distribution. Students discuss mean, median, mode, and standard deviation in relation to skewness using an applet.
Learners are introduced to the concepts of the normal curve, skewness and the standard deviation. They discuss how the normal distribution has been used and misused to support conclusions.
After watching Sal lead up to the finer points of probability in the previous videos, students get a chance to see him grapple with some truly complex problems. He shows viewers how to see these problems as "intuitive" by giving the answer first, and then demonstrating how he arrived there.
Pupils examine kinds of data used to report statistics, and create their own statistical report based on any of the four sources of media information (Internet, newspaper, TV, magazine).
Statisticians investigate normal distribution in this instructional activity as they examine the area under a normal curve and use a model to find what percent of the area lies within 1,2, and 3 standard deviations of the mean. Using the TI-Nspire, they investigate an application of the normal distribution relating to the weight of each orange in a crop.
Young scholars examine how to take a sample by looking at rocks in the schoolyard. In this sampling lesson, students discuss ways to classify rocks by color, size, and weight. They think about how many rocks would make a good sample of playground rocks. They listen to Byrd Baylor's, Everybody Needs a Rock, which describes the "perfect rock" before they write a journal entry describing a rock that is just right.
Students investigate normal probability distribution. In this Algebra II/Statistics and Probability lesson, students explore the area under the normal curve between various x-values and determine what percent of the area lies within 1, 2, and 3 standard deviations of the mean. Students apply this data to answer question about an orange crop with normally distributed weights.