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David Drayer

42 years teaching experience junior high and high school; credentials in Chemistry, physics, biology, earth science, math thru calculus, Social studies, and English Literature. BS chemistry MED biology MA world history Great interest in America History. Spent three years as a Peace Corp volunteer in Swaziland South Africa. Romans 1:16


1,749,973 students helped
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Level 20 in Chemistry Level 18 in U.S. History Level 17 in Earth Science Level 17 in Biology Level 17 in Algebra Level 16 in World History Level 14 in Prealgebra Level 13 in Astronomy Level 12 in Environmental Science Level 11 in English Grammar Level 10 in Organic Chemistry I Level 10 in Anatomy & Physiology Level 8 in Geometry Level 8 in Astrophysics Level 7 in Physics Level 5 in Trigonometry Level 3 in Statistics Level 1 in Psychology Level 1 in Precalculus