Archive for the ‘math education’ Category

Making Box Plots on Ti-84

August 15, 2017

Quick graphs on the Ti-84 is a good way to  see how data is distributed.  The attached document gives step by step instructions along with an example to practice.

Making a Box Plot on the TI 84

Liberal Arts Become Mathematical

April 25, 2017

“Adding Math To Save Humanities” is the title of a sidebar article in the Wall Street Journal, April 25, 2017, about liberal arts colleges trying to add more mathematical contents to traditional liberal arts courses to better prepare their graduates for the work world.  Along with the Big Data revolution comes the need for employees in many diverse fields to be able to analyze data and to “rigorously and effectively” use data to answer questions.  “Emory University in Atlanta has created a degree that marries traditionally qualitative disciplines such as anthropology and English with math and statistics.”  This shift is in part to due students enrolling in liberal arts programs in smaller numbers.  Click below for the full article.

saving liberal arts

Statistically Counting Lost Luggage as Not Lost

March 30, 2017

“An innovation aiming to streamline how air passengers reconnect with their lost luggage comes with a major asterisk: airline would no longer count the luggage as lost.”  Using text messaging, airlines could advise you that your bags did not make your flight, and you can give them instructions via text where they should send the lost bags.

DOT statisticians will not count those bags as lost, and airlines can maintain goods stats while perhaps not performing so well.  You say, “They’re not lost, because we know where they are.”  I say, “They’re lost because they are not where they belong.”

Whoever said statistics was an exact science?

For the full article in the Wall Street Journal, click here:

counting Lost Baggage

Economics Should be Required in High School

March 3, 2017

Economics is so basic and essential for good citizenship and good personal decisions, that it is a shame high school students can graduate without even being exposed to the subject.  An article by high schooler Benjamin Auslin from Montgomery Blair High School in Silver Spring, Maryland, makes a strong argument that understanding supply and demand, the time value of money, return on investment and the basics of personal finance are skills that would well serve the graduates and society.

economics-shouldnt-be-an-elective-wsj

Common Algebra Mistakes

June 20, 2016

Teachers know that there are many common errors that keep popping up with each new class.  For a good compilation of the common errors and the proper statement, click here:

http://tutorial.math.lamar.edu/Extras/CommonErrors/AlgebraErrors.aspx

 

How Changing the Expectations Changes the Outcome

June 19, 2016

Self fulfilling prophesies can make someone his own worst enemy.  Expecting to fail can become the formula for failure.  The question is how to get students who have low expectations of themselves, and who doubt their ability to succeed, to reset their mind-set.  Some new research sheds some valuable light on this question.

A Small Fix in Mind-Set Can Keep Students in School – WSJ