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Appropriate Level: Algebra 2 (with logarithms) The Question: Suppose you start with an object that has the mass of a proton. If this object doubles in mass every five minutes, how long will take for it to grow to the … Continue reading
Appropriate Level: PreCalc and beyond The Card Trick: Ask for a volunteer, who will then pick a card from a standard 52 card deck, show it to the class, and return it to the deck in the location of his/her … Continue reading