Today I found out why you used to have to use #2 pencils when using scantron forms. Now, you might be saying, “Used to? Don’t you still have to?”  It turns out, despite what pretty much all teachers will tell you, not really.  Modern scantron systems are quite high-tech, using image sensors and sophisticated image processing algorithms.  These algorithms can … Continue reading Why You Used to Have to Use #2 Pencils With Scantron Forms