This lesson plan models an information-gathering process for primary learners as they listen to and look at resources, seeking information pertinent to the questions on an information wheel. Guiding the listening, looking, and learning...

Comprehensive guide with 17 areas of suggestions and tips for delivering a successful class presentation. Requires Adobe Reader. [PDF] CCSS.ELA-Literacy.CCRA.SL.4, SL.11-12.4 Presentation

At this site from the Georgia State University is where the proof all starts. One must understand this experiment to have any confidence in relativity. Here's the experimental setup and a summary of the data.