Build tables by understanding their structure. Scholars take a closer look at the structure of ratio tables in the 10th segment in a 29-part series. Individuals realize that the tables can be built using an additive or...

High schoolers begin by completing a survey asking them to rank their concerns about commercially prepared foods. They develop a definition of relative risk, and complete the "Pro or Con" worksheet. Students work in groups to make a...

Students experiment with silly putty.  For this chemical changes lesson students work in groups, perform tests and collect data.