1. (Difficult) I found implications to be the most difficult of the lesson materials, because the book presents it by showing a case that "If 3 is an odd integer, then 57 is prime," which of course is an absurd notion to make. The fact of whether the number three is odd or even has no relevance on the prime nature of the number 57. The book also doesn't explain with this example why the truth tables show that in an implication statement, if the first condition is false then the entire implication is marked "true." It is explained better later through the example of the teacher, student, and final grades.
2. (Reflective) These lesson materials remind me very much of the work I did in Electrical Engineering with Logic gates. We also used truth tables, but instead of true and false, we used 1's and 0's (binary) to illustrate the electrical circuit. We were also given a master list of simplifications to use so that if we encountered a complex logic string we could simplify it down to the smallest possible components. I can only assume that we are headed in the same direction with this new material.
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