mathconfidence

Q: Can you transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is ...

Q: I traveled home in an old car that was leaking gas and could only be driven at a steady 30 miles per hour while getting gas mileage o...

Q: What is the next number in this series? 1, 11, 21, 1211, 111221, 312211     A: 13112221  as the last number listed above is 31...

Q: 8, 5, 4, 9, 1, 7, 6, 10, 3, 2, 0...what is special about this sequence?      Where would 11 fit into this sequence? A: The numbers...

It is wonderful to see attention on this important national issue It would be great to have samples of the placement tests on your web site:...

Q: Gauss  said: "The cube and the fourth power of my age contain each digit from 0 to 9 exactly once."   The professor said: ...

Q: What is the largest number possible using only three digits?    A:    9 to the 9th to the 9th 9^9 does not equal 81.  9^9=387420489  ...

Q: Find the two numbers whose digit sum is half of the number itself. A: 0 and 18

Q: Find the two right triangles (with whole number sides) whose perimeter and area are 24. Meant to ask  Find the two right triangl...

Q; Jack and Jill   have two children and one of the children is a boy. Assuming that the probability of each gender is 50/50.   What is the...

SAT tutoring is teaching to the test as the College Board book has old tests in it! as does the ACT. I wish the Common Core testing would ...

Q: Can you circle exactly four of these numbers such that the total is twelve? 1 6 1 6 1 6 1 6 1 6 1 6 A: This brain teaser is a...

To the Editor: We need good PR in Education and even more so in Math Education.  The front page article with "The Loser Has to Do M...

Q: How can you make the following equation true by drawing only one straight line: 5+5+5=550 ? A: Draw a line on the first plus sign. This ...

Here is my letter published by the New York Times in response to E.D. Hirsch's How To Stop the Drop in Verbal Scores http://www.nytimes...

Success literature such as John Maxwell re: leadership or Jim Rohn re: personal development is often highly prized by salespeople because th...

Other ideas for classroom management and leadership: Environmental changes: Lights up, lights down Open door, close door Walk around with ...

Students can be a tough audience.  Most students are in Math class because it is a requirement so what can teachers do to keep students focu...

This week, Math Confidence's blog will contain posts in response to today's (Sunday 12/8/13) NYT Editorial "Who Says Math is Bo...

Q: On a 12-hour digital clock, what is the smallest interval between two times that are palindromic (can be read forwards and backwards as t...

Is the student learning? Is she putting in effort? These are the two top questions to ask the student and the family. Too often, ppl rate th...

Q: Two babies born on the same day in the same year with the same mother and father are not twins.  Can you explain how this can be?  A: Th...

To the Editor: If students learn the content on the SAT, they will be college ready so v iewing test prep as an opportunity to learn new ...

Q:    SEND +MORE MONEY   9567 +1085 10652 Figure out what number each letter stands for in the sum above.  Each letter represents i...

I already incorporate this idea of "mistakes are a learning opp" into my teaching having read Dweck's book which confirmed my ...

Q: How many 5-digit numbers do not contain the numbers 3 and 5, and are multiples of 4? (It cannot start with 0, ie. 01234 is not a 5 dig...

If schools took on the mindset evidence seriously, what would they need to change? "Mindset" refers to Carol Dweck's book ...

Question for students (and parents): Do you think you can get smarter? I ask this of my college students and at the end of the semester a...

Daily: A power walk with arms swinging above my head to two songs:  "Life" by Haddaway and "get Ready for This" by 2 Unl...