Roy Blacksher

Roy is a retired Engineer/Businessman, who did poorly at first year college Calculus. Since that humbling experience, he has been motivated to find out why the subject was so hard.

Over the years he discovered that Calculus is a fascinating, easy to learn subject. Unfortunately, the basic concepts are buried in most Calculus textbooks. He had to dig them out.

He shares his efforts in Roller Coaster Math

Roy is convinced that If all middle school students knew what a “Derivative” was, more would pursue STEM careers.