I had a high school teacher that taught a college level biology class. Now it gets community college credit, but she didn't want it to be AP, because she doesn't like having to rush through things. She had the best test questions ever; they REALLY required critical thinking. She would come up with these extensive allegorical stories that required synthesis of overarching concepts we'd learned in the class. One of her test questions involved the royal family of Spain being abducted by aliens, and we had to prove that we were distantly related to the royal family and would be next in line for the throne. She gave us a two 11x17 page family tree of the royal lineage, and we had to figure out that mitochondrial DNA was the key to the whole thing, trace the royal family all the way up and all the way back down the family tree to find the only living guy to get a blood sample from who would have the same mDNA as us.
She also had an absolutely awesome main lab project that we took about a month out of class to do. She gave us a printed-out Wikipedia article on rum, showed us the basic mechanics of a distiller, gave us a bunch of materials, and told us whoever made the most ethanol would win a prize. We had to make an incubator out of insulating materials and heat pads, figure out the optimal ratio of yeast to molasses by making respirometers (we ended up with 18 of them made of upside-down Gatorade bottles in a tub of water) to measure their CO2 output, burn off known concentrations of ethanol to get a standard curve based on weight that we could use to evaluate our results, and build and run our own stills, which were made of a collection of copper tubing, PVC piping, various plastic bottles, plumber's putty, and duct tape. And she didn't answer any of our questions. Most everybody was in the lab at least 6 hours/week after school to tie up loose ends and collect more data, and in the end we weren't able to come to any conclusions at all. It was one of the most educational experiences of my life.