REMINDERS: Answers in red. Solvers (submitted/correct) in blue. (Forgive any omissions, but feel free to inform.) Comments in green. For further elaboration on solutions, please feel free to ask! This brain teaser first appeared on 5/3/21. This is almost a ‘prime countdown day’. a) Why is it NOT? b) When will the next true prime countdown day occur? […]
Author: Larry Campbell
Brain Teasers – Jul/Aug 2021
NOTE: Newest BTs in red, Bonuses in blue, comments in green, updates in purple. Consider the complement of any acute angle and the supplement of any obtuse angle. Is one of those always bigger (which one?) or might they vary? Consider any positive rational number and that number’s square root. . Is one of those […]
Facts, Fears, and Perspectives
Further, I guess I don’t even see any real harm in asking tougher questions like “have some institutions, laws, etc actually undermined progress in eliminating racism?” If the answer is no, there was no harm in asking. If the answer is yes, there is plenty of harm in not asking.
Ambition
Waffles ?!?!
Interesting & Weird Mathematicians (And Stories About Them)
JOIN THE FUN ON JULY 11th – 4:00 PM INTERESTING & WEIRD MATHEMATICIANS – AND STORIES ABOUT THEM (Part 1) PREVIEW OF STORIES This 40-minute session will share several fun stories involving various mathematicians and events in their lives, from the BCE era to the present. You’ll have several laughs – and learn some fun […]
Critical Race Theory: What do you THINK?
Talk about ‘hot-button words’! I’m not sure I’ve ever seen so much passion (dare I say fear?) generated by such a nebulously defined (at least to me, at this point) topic! And so, we have our latest controversy in society and in education. This will not be a column about Critical Race Theory (CRT) itself. […]
If P then Q: The Conditional Statement and Its Variations
A CONDITIONAL statement is one of the form P –> Q. (P implies Q; if P, then Q; etc.) EXAMPLE: If you have 4 quarters, then you have change for a dollar. The CONVERSE of a conditional statement is Q –> P. (It’s where the phrase ‘and conversely’ comes from in daily English usage.) EXAMPLE: If you have […]
