Concentration
Ted Ehrheart is a Junior High Science Teacher at Mission Viejo Christian School in Mission Viejo, California. This website was designed for my current students as a teaching tool. We use it on a daily basis at school. All Teachers, Students and any guest who may feel so inclined, are welcome to utilize the Video Tutorials (Screen Casts), PowerPoints, Slides, Photos, Lecture Notes, worksheets, etc., etc. on my website for their use.