|
Breathe Easy
|
| Subject
Area |
Human
Body Systems and Health |
| Age
or Grade |
7th Grade |
| Mass DOE Content Standard |
Identify the general functions of the major systems of the human body (digestion, respiration, reproduction, circulation, excretion, protection from disease, and movement, control, and coordination) and describe ways that these systems interact with each other. |
| Prerequisite
knowledge/skills |
Basic
anatomy, bar graphs |
| Description
of New Content |
Parts
and function of the lungs. |
| Goals |
Students will label the parts of the lung and relate them to a model. Students will understand the effects of exercise on repiratory rate. |
| Materials
Needed |
Optional
computer for interactive lungs 20 ounce or 2 liter plastic bottle, balloon, piece of plastic from a trash bag or shopping bag (cut in a 30-cm-diameter circle), rubber band, scissors, marker, masking tape |
|
Procedure
|
Opener: Have the class brainstorm about the roles of pumps and vavles. What pumps and valves do they know about from day to day life? Try to guide them to the fact that the heart is a pump and explain it has vavles to regulate flow. Exploration: Students will use the following worksheet to move through several stations set up to investigate the lungs. Station 1: Student can use their book or an interacitve website (ex.Interactive Assement: Lungs 2 ) to label the various parts of the respiratory system. Station 2: Option 1. Students will build a model of the lungs. Option 2. Student will explore a pre-built model of the lungs. (Directions for model)3 This model will explore how the diaphragm and lung work togeter to move air into the body. Station 3: Students will try various exercises, monitor pulse, and create a graphs of the repiratory rate for each.. Closer: Review worksheet with class. Ask student to help fill in a blank overhead of the parts of the heart. Ask how the model relates to the hearts and what effects they saw with exercise. |
| Evaluation |
Closer can serve as a partial evaluation to see which groups can sucessfully name the parts. Worksheet can be collected and graded. |
| Extensions |
This
lesson works well with the heart lesson.
Students can use this worksheet to
compare the two activities. The Science Museum of Minnesota has several other lessons on both heart and lungs. |
| References | 1.Holt Science and Technology Short Courses: Human Body Systems and Health. Chapter 2 Circulation and Respiration 2. Interactive Assesment Worksheets 3. Science Museum of Minnesota |