Philosophy of Mathspeaking topic
Keep adding positive numbers and you can climb to infinity, but 1 + 1/2 + 1/4 + 1/8 + ... never gets there; it stops at exactly 2. How can adding infinitely many things give a finite answer?
— convergence of the geometric series
practice with this topic
Set the timer (5-30 min), take 20 seconds of prep if you like, start talking. Jot your thoughts onto the sticky-note board.
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