An arithmetic progression is a sequence of 3 or more integers whose terms differ by a constant, e.g., 20, 23, 26, 29...
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Van der Waerden Theorem
Can you color the integers red and blue such that there are no monochromatic arithmetic progressions (AP’s) extending infintely in...
Continue reading...Four Fours Problem
Here’s a challenge that you may wish to try: can you express all the numbers from 1 to 100 using...
Continue reading...Proof with Words
2 + 11 – 1 = 12. Figure 1 demonstrates a “proof with words”! Presentation Suggestions:Write the letters for two and...
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