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...

Learners 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 study of...

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