Through this University of California, Berkeley website, both students and teachers can understand the complexities of geologic time. Through interactive timetables, students can discover when key events occurred in the earth's history, the difference between relative and absolute time, the Law of Superposition, and the Geologic time scale. At the end of the tutorial, users can test their knowledge. Educators can find preparation steps, technical requirements, standards, and user tips. The website provides a list of terms, simplified version of the geologic time scale, quizzes, assessment materials, and other lesson plan ideas.