The two unforgivable sins of math (before Algebra 2 introduction of i and the limit concept when evaluating intermediate forms like 0/0).

# Category: Blog

Oct 13

## October 2019

Aug 05

## Math Equation? Math question? or is it just simplify this expression?

The New York Times (https://www.nytimes.com/2019/08/02/science/math-equation-pedmas-bemdas-bedmas.html?utm_source=pocket-newtab) ran a story about it. The author (Prof. Steven Strogatz) state: ” The question above has a clear and definite answer, provided we all agree to play by the same rules governing “the order of operations.” When, as in this case, we are faced with several mathematical operations to perform …

Aug 03

## Summer 2019

This has been a busy summer. We moved to Aspen Hill and will open our center at the start of the school year. Most tutoring will continue to take place at the students home or preferred library. The center will be an additional option for those who find the conditions at home to be less …

Aug 18

## SAT Question of the Day transition from email to app.

Well, it seems the makers of the SAT do not want to send us emails any more. If you have an Apple phone or tablet there is an App for you. For the rest of us with Android based machines the College board seems to think we will run and buy one? I would expect …

Aug 11

## SAT Question of the Day August 11th 2013

If Kelly buys pens priced at dollars each and pens priced at dollars each, which of the following expresses, in terms of and , the average (arithmetic mean) price, in dollars, of these pens? A. B. C. D. E. Very similar to the question discussed in the previous post, we …

Aug 11

## SAT Question of the Day August 8th 2013

For every dollars Ken earns mowing lawns, he gives dollars to his younger brother, Tim, who helps him. Which of the following gives the relationship between , the number of dollars Ken earns, and , the number of dollars he gives to Tim? A. B. C. D. E. Yet another …

Aug 11

## SAT Question of the Day August 05 2013

The graph above shows the distribution of the number of days spent on business trips in by a group of employees of Company W. Based on the graph, what is the median number of days spent on business trips in for these employees? A. B. C. D. E. …

Aug 04

## SAT Question of the Day August 2nd 2013

A -foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on concrete feet from the base of the building. If the top of the ladder slips down feet, then the bottom of the ladder will slide out A. feet B. feet C. feet D. …

Aug 04

## SAT Question of the Day July 30th 2013

All numbers divisible by both and are also divisible by which of the following? A. B. C. D. E. This is a number set property question asking us about the divisibility of a set of numbers that are divisible by both 4 and 15. If a number is divisible by 4 …

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