The background information and activity sheet for this lesson are impressive in appearance. The intent is to guide junior geologists though an examination of mineral properties and identification. The problem with the lesson is that it does not differentiate between rocks and minerals. Tests performed do not identify rocks at all, just minerals. The activity sheet calls the unknown specimens rocks, when they are, in fact, minerals. Use the science content written into the plan as a reference, but make sure to omit rocks from the lecture and create an accurate lab sheet.