Monday, May 5, 2014

LEARNING ABOUT THE HEART

Look how much fun children had learning about the heart!




Students recently studied the circulatory system in Physical Education.  We borrowed a model of the heart from the science department in order to see the veins, arteries, chambers, and valves in the heart.  Students learned the location of the heart, how big it generally is, and how the heart is affected by exercise.  They even used a cardboard tube as a stethoscope to listen to another person’s heartbeat.   Students also watched a demonstration of how lungs inflate as we breathe in air.  They know that blood receives oxygen from the lungs.

Students also learned about the path of the blood through the body.  They played a game where they moved from the heart (the circle) to the lungs (the gym mats) to oxygenate the blood, then back to the heart to pump the blood out the aorta to the various arteries in the body (the red hoops).   They learned that “used” (un-oxygenated) blood takes on a more bluish appearance as it is returned to the heart through the veins (the blue hoops).  This process is continually repeated.

We also talked about the various risk factors that contribute to heart disease.  The students were very interested in this and asked a lot of questions.  We had some very good discussions in class.  The risk factors we discussed included:

SMOKING
HIGH CHOLESTEROL
UNHEALTHY WEIGHT
HIGH BLOOD PRESSURE
LACK OF EXERCISE
HEREDITY
LACK OF MEDICAL CHECK-UPS

In the gym we played Risk Factor Tag.  Students moved in various ways and were chased and tagged by someone who was one of the risk factors.  (We used different equipment like a swim noodle for a cigarette and Frisbees for “junk food.”)  The tagged person was frozen in place until another person could come and deliver a healthy message related to the risk factor. (An example might be “Smoking is bad for your heart and lungs.”)  Once the message was delivered the tagged person was required to do a special skill to get back into the game.  Students did jumping jacks, jogged in place, moved about doing a basketball dribble, pumped their hands like a heart, kicked a spider ball like a soccer ball, crawled through another person’s legs, held hands with a friend and moved in a circle, tossed a ball in the air and caught it, and jumped back and forth across a line.   Risk factor tag was a very active game.  Children enjoyed moving about and learning the special message associated with each risk factor.

I hope children will continue to recognize these risk factors as they get older and make healthy choices for their own heart.  This was an important unit of study.  Each person only has one heart so he/she must learn to take good care of it!