Today we went over and discussed most of the Practice of Science learning goal scale. We discussed some forms of scientific investigation that do not involve experimentation, including research, observation, and meta-analysis. We looked at the order of the scientific method, and specifically when the hypothesis should be generated. GT was easily able to demonstrate that he can identify independent, dependent, and controlled variables in an experiment, and, on his own, linked the idea of controlling variables to that of reducing experimental bias. :) We discussed uncontrolled (uncontrollable) variables and how scientists address them. We discussed and watched a video on placebos.