Once he's mastered geography, broaden his knowledge and fancy his curiosity by exploring the world of volcanoes, earthquakes and other natural occurrences that have shaped both our planet and the continental plates.
Purchasing books and visiting the library can certainly broaden your child's exposure to good reading material, but if you haven't ventured into the Web, you're also missing out on another valuable reading resource.
I'm pushing you to broaden your perspective.
Next to my own dear teacher, he has done more than any one else to enrich and broaden my mind.
Its one object was to broaden Burgundy's mind, and ever keep before his eyes the "great and holy maxim that kings exist for the sake of their subjects, not subjects for the sake of kings."