CK-12 Foundation
Ck 12: Respiratory System Regulation
[Free Registration/Login may be required to access all resource tools.] In the following online lesson students will explain how the rate of breathing is regulated.
CK-12 Foundation
Ck 12: Biology: Respiratory System Regulation
[Free Registration/Login may be required to access all resource tools.] Describes how the rate of breathing is regulated and controlled.
Science Museum of Minnesota
Lesson Plan: Ins and Outs of Respiration
In this effective site, students will measure their respiratory rate and examine the factors that affect the breathing rate.