This was an insidiously brilliant technique to focus our attention - by offering an open invitation for students to challenge his statements, he transmitted lessons that lasted far beyond the immediate subject matter and taught us to constantly checksum new statements and claims with what we already accept as fact. Early in the quarter, the Lie of the Day was usually obvious - immediately triggering a forest of raised hands to challenge the falsehood. Dr. K would smile, draw a line through that section of the board, and utter his trademark phrase "Very good! In fact, the opposite is true. Moving on ... "
As the quarter progressed, the Lie of the Day became more subtle, and many ended up slipping past a majority of the students unnoticed until a particularly alert person stopped the lecture to flag the disinformation. Every once in a while, a lecture would end with nobody catching the lie which created its own unique classroom experience - in any other college lecture, end of the class hour prompts a swift rush of feet and zipping up of bookbags as students make a beeline for the door; on the days when nobody caught the lie, we all sat in silence, looking at each other as Dr. K, looking quite pleased with himself, said with a sly grin: "Ah ha! Each of you has one falsehood in your lecture notes. Discuss amongst yourselves what it might be, and I will tell you next Monday. That is all." Those lectures forced us to puzzle things out, work out various angles in study groups so we could approach him with our theories the following week.
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