Today the L section finally got to learn about radioactivity. It was a good lesson, and they progressed through it well and made important insights. One thing I want my students to know is that all elements can be radioactive if the ratio of the protons to neutrons is not close to one. Using an online tool, we figured that out together today.
In the OWS sections, we learned about covalent and metallic bonds, Essential Questions 5-4 and 5-5. We reinforced the concepts with the molecular model kits. The toughest element to create today was O2, a double bonded covalent molecular compound. Everyone eventually got it, and we drew the structural formula and the electron dot formula as well.
The quiz for this unit is soon. The L and S sections take it Thursday, and the O and W sections take it Friday. There is a practice quiz on Moodle right now. I don't know why more students don't take this--it uses questions I will use on the actual quiz and is fantastic practice to get ready for a tough quiz.
Tomorrow is eggsperiment day, a day when we split into teams of three and drop eggs from two different heights. I will report on it tomorrow.
Sweet justice!
