The Anatomy of a Great Teacher

A great teacher changes the lives of their students forever; they instill confidence and knowledge in every student who crosses their path. What makes a great teacher, and how do they treat their students and their classroom? Find out where teachers fit into our society, and what they’re doing to educate young people in America.

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The Anatomy of a Great Teacher


Shark Family – One Big, Happy, Carnivorous Family

The earliest sharks date from more than 420 million years ago, before the time of the dinosaurs! The 400 species of modern sharks have evolved in various ways and scientists have classified them into the 8 major groups shown in this graphic. See how sharks fit into this family tree, from the most well-known sharks like the great white and tiger sharks, to the bizarre lesser-known sharks like the frilled shark, goblin shark and cookiecutter shark.

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Shark Family – One Big, Happy, Carnivorous Family