Mathematics provides support in understanding parts per million, an important topic for understanding toxicity in human health. Other topics addressed in the math strand are: Bars and Graphs and Data Analysis.

Standards addressed by this unit are available on the individual lessons. To reach a lesson, just click on its title. To see connecting lessons in science, social studies, and language arts return to the ‘Cultures and Cycles’ unit page.

Each big idea is addressed by a learning cycle. At the completion of each big idea’s learning cycle students should be able to answer the corresponding question. At the end of the unit, the students will be able to apply their new scientific understanding to the Major Project where they provide a public service message that is checked in advance by local public health officials for accuracy.