Don't take a Geologist for Granite

Today in field work, group three taught the class a lesson in Earth Science. The lesson was dedicated to the study of three types of rocks. Those rocks were; sedimentary, igneous, and metamorphic. I thought the instruction about the types of rocks was excellent. The downfall of the lesson was after the direct instruction. Unfortunately, the rest of the class was based off of information that was not given to the children in the direct instruction. The slide show taught the class only about the three types of rocks and their distinguishable characteristics. Following the slide show was an interactive game. This game could have been a great resource had the teachers discussed the terms and knowledge behind it. Students were asked to test permeability, durability, and buoyancy. None of these terms were taught or discussed previously. If the children are not exposed to the information, they have no idea what they are doing or why they are doing it. In addition, they students were not taught about any of the tests that they were told to complete in their lab. I heard multiple children ask "what is luster?", or "what is grain size?". You can't expect your students to know information you don't supply to them. In continuation, having been a science student for years, I believe safety comes first. The instructors did not explain to the students what was in front of them on the lab table and how to use the tools properly. Luckily, a teacher sat at each lab table to help the students. Otherwise, a child could have gotten very hurt.  Aside from the frustration some kids expressed, I think they did enjoy learning about rocks and being hands on with them.