During the month of December, we studied the respiratory system. It was a pretty straightforward unit of study, but I was able to find several activities that better helped the kids understand how the respiratory system works and how to strengthen their own.
The kids did cotton ball races. Did you know that slow, regulated breaths are more controlled than fast, sporadic breaths? Yeah, pretty intuitive. Still, sometimes it's not enough just to say it; you have to PROVE it.
That same day the kids tested their lung capacity with a messy little experiment. As they blew air through the straw into the upside-down container, they replaced the water with air and thus could see how much air was in their lungs. It wasn't a contest, but if it HAD been, Phoneix would have won hands down.
Also, the kids learned that if you blow really hard and fast, water gets all over the table. They thought that was funny. I did not. Obviously the slow, regulated breathing idea didn't really stick.
Finally, we made a model of the lungs and the diaphragm to get a good idea of exactly how the diaphragm works. When you pull on the plastic "diaphragm," the balloon "lung" inflates. Fascinating. We called it our "baby respiratory system" since the best way to manage it was by cradling it.
On a different day*, the kids tested their knowledge of the respiratory system by building a complete model of it using recycled junk from around the house (I had been saving some items for this activity). I really tried to stay out of the mix and let them figure things out for themselves. I think the only help I gave was (at their request) to tape the bronchiolles (straws) to the lungs (ballons). The *teamwork* was spotty at the beginning, but once they figured things out, the project went smoothly.
When they were done, they gave a mini oral presentation explaining the process of respiration using their model. I have to admit, I was impressed, and it takes a lot to impress me (sadly). They even remembered to include details, like the epiglottis.
We have since then moved on to the reproductive system at their persistent request. Don't count on any pictures of that unit of study :). Fortunately, Stayc and I have already had multiple talks with the kids on the subject, so the general idea of reproduction is not foreign to them. Still, it gave me another good opportunity last week to talk about the Law of Chastity and our own religious beliefs. You definitely wouldn't get THAT in a public school.
* Don't be deceived by the fact that Phoenix is wearing the same clothes in every picture. These were, in fact, separate days (evinced by Lu's different outfits). We just wear the same clothes over and over again. It's a China thing . . . but one that I would really like to keep when we get back home. I do entirely too much laundry in the States.