Everything you need to understand or teach Lucky Starr series by Isaac Asimov.
David Starr, Space Ranger is quintessential "space opera," with both the strengths and the limitations of that formula. Good prevails against evil, science over ignorance, the humans of Earth over threats from elsewhere in the galaxy. Continual action and descriptions of imaginative gadgets keep the pace of the narrative brisk. The lucid, straightforward prose includes frequent explanations of space phenomena in general and the planets in particular.
Like its sequels, David Starr, Space...