High school Chemistry teacher with 19 years of teaching experienc

Hello, my name is Lawrence Harris and I have been teaching and coaching for the past 19 years. I began my Career working as an analytical chemist testing plating baths for car rim manufacturers, air plane parts, satellite parts and many other things. I also worked for one of the largest specialty gas manufacturer?s in the world testing tanks of oxygen, helium, nitrogen, and other assorted gases. After working in the industry for three years I decided to become an educator. I began my teachi... Read More >>