Additional resources for further exploration
Find a study resource for your students at the link below with this introduction to terms for geographical regions.
http://quizlet.com/3048617/chapter-2-regions-flash-cards/
Scan this round-up of ideas for teaching the concept of regions to fourth-grade students.
http://www.proteacher.org/c/346_Regions_of_United_States.html
For all grade levels, this round-up of lessons on deserts shows the many factors (e.g., habitats, animal life, vegetation) that go into defining a particular region.
http://www.neok12.com/Deserts.htm
Get your K-2 students thinking about regions with this National Geographic activity, "Why People Live Near Coasts."
https://www.nationalgeographic.org/activity/why-people-live-near-coasts/
This activity for grades 3-5 focuses on mapping language regions in the Americas.
https://www.nationalgeographic.org/activity/major-languages-of-americas/