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October

School is underway and I hope things have settled down for you. You may need a little break so I suggest you give the Calculus Humor website a look. You‘ll find some humorous things there such as the graph at the top of this post. As the name suggests they are all based on calculus.…

Power Rule Implies Chain Rule

Having developed the Product Rule  and the Power Rule  for derivatives in your class, you can explore similar rules for the product of more than two functions and suddenly the Chain Rule will appear. For three functions use the associative property of multiplication with the rule above: So expanding with a slight change in notation: For…

Table MVT

Mean Tables

The AP calculus exams always seem to have a multiple-choice table question in which the stem describes function in words and students are asked which of 5 tables could be a table of values for the function.  Could be because you can never be sure without other information what happens between values in the table.…

Weather

Intermediate Weather

I found a curious fact in a textbook today that relates to the Intermediate Value Theorem [1]. It claimed that if you draw a circle of any size on a map, there will be two diametrically opposite on the circle at which the temperature will be the same! This might make an interesting example when…