Texas Essential Knowledge and Skills
Grade 8
Probability and Statistics
12. The student uses statistical procedures to describe data.
Lessons (2)
Students discover algorithms as they sort shapes into Venn diagrams. Then students compare the efficiency of their algorithms using box plots.
Students learn about the difference between univariate and bivariate data and understand how to choose the best graph to display the data.
Activities (8)
Run a simulation of how a fire spreads through a stand of trees, learning about probability and chaos. Track the results of multiple burns and use the data to draw conclusions.
Enter data to create a bar graph, then change many settings for the graph's appearance.
Students can create box plots for either built-in or user-specified data as well as experiment with outliers. User may choose to use or not use the median for calculation of interquartile range.
Enter your own data categories and the value of each category to create a pie chart. There are also built in data sets which can be viewed.
View histograms for built-in or user-specified data. Experiment with how the size of the class intervals influences the appearance of the histogram. Parameters: Data sets, class sizes.
Enter data to create a double bar graph, then manipulate the graph's maximum and minimum values.
PlopIt allows users to build dot plots of data using the mouse. View how the mean, median, and mode change as entries are added to the plot. Parameters: Range for observations.
View stem-and-leaf plots of your own data, and then practice finding means, medians and modes. Stem and Leaf Plotter is one of the Interactivate assessment explorers.