Definition. The prefix (-erythr or -erythro) means red or reddish. It is derived from the Greek word eruthros meaning red. Examples. Erythralgia (erythr-algia) - disorder of the skin characterized by pain and redness of affected tissues. Erythremia (Erythr-emia) - abnormal increase in red blood cell numbers in the blood.
Jokes that go too far. All can threaten the secure learning environment that teachers strive to create. Whether it's alleviating the first-time-in-school fears of a kindergartner or ensuring a safe haven for a teased teenager, making a classroom safe is the first step to effective learning.
Building Trust. 1  1. Get to know your students. Your students will be more inclined to act in positive ways if they feel like their teacher cares about them as individuals. 2  2. Share your life with your students. Building relationships is a two-way street. 3  3. Use humor. Humor is essential for building a positive classroom atmosphere.