When you conjure up an image of cells, what do you see? What do you think? You may see a snapshot of an animal tissue, perhaps with actively dividing cells. That’s understandable because, as animals ourselves, we’re aware that cells come from other cells, thus the need to undergo mitosis, or cell division, frequently.
But one […]

Sounds like a riddle, but it’s not trivial. We’ll get back to that in a minute. First consider the scenario: The class arrives from physical education. Today’s activity was mat ball, a variation of dodge ball involving lots of kids and lots of contact with balls and mats. They’re pumped, a little sweaty and out […]

Halloween is approaching and the gore of blood is often a part of the scene. But how about turning your students on to the beauty of blood—the amazing beauty of how it accomplishes all it does?
In middle school, students often investigate the circulatory system and memorize the flow of blood from lungs to heart, to […]