|CROSS CURRICULUM :||SCIENCE / MATHEMATICS / LANGUAGE ART|
|TITLE OF UNIT:||
GRADE : 3RD - 7TH
AFTER 2 DAYS OF INSTRUCTION AND HANDS-ON ACTIVITIES, STUDENTS
WILL BECOME AWARE THAT AIR IS MADE UP OF GASES. STUDENTS WILL
THAT IN BREATHING AN EXCHANGE OF GASES TAKES PLACE IN THE LUNGS.
|SUBJECT MATTER :||
Invite students to talk about what they know about lungs.
Using K-W-L strategy students will share their own knowledge about lungs.
Explain to the students that they will make a model of their lungs and they will learn how the diaphragm works.
|ACTIVITIES. A:|| Help students cut the bottom off of the bottle,
leaving a portion of the bottom edge on.
Cut the bottom of a large balloon and discard.
Tie the stem of the balloon in a knot and slip the open end over the bottom of the bottle.
Student will attach the small balloons to the straw with a rubber band and insert the straw, balloon side down into the bottle.
Student will seal the top around the straw with clay or play dough.
Students will experiment by pulling down on the knotted balloon. The small balloons will inflate the same as when the chest is expanded and inhales air through the nose.
|ACTIVITIES. B:||After observing how the model works, the class will discuss and conclude that breathing is a mechanical process by which there is an interaction between the organism and the surrounding air; the lungs and other parts of the respiratory system perform this mechanical process; that we breathe air ( a mixture of gases composed of oxygen, nitrogen, and a minute amount of carbon dioxide); oxygen, the gas the body needs, comes from the air; the lungs and other parts of the respiratory system remove carbon dioxide from the blood as a waste product and that this excess carbon dioxide is exhaled.|
Write on the chalkboard the following questions and have the students
question on a sheet of paper:
| Organize students into small groups to observe
the following web sites. Students will discuss and write a
journal entries on the important things they learned on these web
See the Grading Rubric:
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