Algebraically Challenged

by | Aug 15, 2013 | General

I was helping the girls with their Algebra II homework last night, specifically with a Challenge question that was stumping them. It looked something like this (actual values changed so as to avoid giving away the textbook solution): CHALLENGE: For any three distinct...

Fractional Canceling Error

by | Nov 20, 2008 | General

I love “this post”:http://scienceblogs.com/builtonfacts/2008/11/testing_123.php from Matt Spring on “Built on Facts”:http://scienceblogs.com/builtonfacts/ the other day. In it he describes a mathematical manipulation on a test that “he...

Math-erwocky

by | Jan 31, 2008 | General

Ok, so in my Real Analysis class, we’re finally getting down into the nitty-gritty of discussing mathematical grammar for proofs. We’ve been discussing statements and their negations, converses, and contrapositives. We began with two statements: P: I eat...

Dividing 10s

by | Jan 27, 2008 | Asides

Signs of a potentially disturbed mind: Not wanting to go to bed because you’re having too much fun performing long division – in binary.