Curated OER
Whose Line is it Anyway?
Students solve systems of equations. For this algebra lesson, students identify the domain and range of each function. They use the slope and y-intercept to graph each line.
McGraw Hill
Glencoe Biology: Methods of Science: Self Check Quiz
Take this self-checking, five question practice quiz over various methods of science.
NASA
Nasa: Imagine the Universe: Welcome to the World of X Ray Astronomy
Site recounts how X-rays were discovered as well as who discovered them. Offers graphics, links to facts on this topic, a quiz, and teacher resources.