By Bill Lombard on 1 April, 2011
The Factoring Quadratic Polynomials video shares five approaches/techniques I take in class with students when explaining how to do well on standardized tests. I factor five polynomials using these techniques – remember to pause and rewind as you watch – you’re in total control.
Posted in Mr. L's Videos, Pedagogy |
By Bill Lombard on 1 April, 2011
KenKen Player – Now you can play KenKen on the mrlsmath.com website. Click the following link for the newly released (Beta version) of the online KenKen Player, from the makers of the game that’s catching on in math classes across the U.S.A. Enjoy the experience; it’s a great way to share the game in a [...]
Posted in Math Activity, Website Resource |
By Bill Lombard on 27 March, 2011
The Standardized Test Strategy – Working Backwards video shares one approach I take in class with students when explaining how to do well on standardized tests. It’s helpful to have the correct answer as one of the possible answers given on the test. It’s even nicer when you have some strategies to make it even [...]
Posted in Mr. L's Videos, Pedagogy |
By Bill Lombard on 27 March, 2011
The Standardized Test Strategy – Eliminate Impossible Answers video shares the approach I take in class with students when explaining how to do well on standardized tests. There’s a lot of good thinking that can be found in multiple choice tests, and I stress with students that they want to be “smart test-takers” when doing [...]
Posted in Mr. L's Videos, Pedagogy |
By Bill Lombard on 27 March, 2011
The Sum Equals Product Puzzle Part 2 – Solution shares the video showing the approach I took to solve this puzzle, which asks “Can you find a set of positive integers whose sum equals their product?” The original problem some extensions, and the generalization are shown, along with the algebra proof. You can play the [...]
Posted in Mr. L's Videos, Puzzle |
By Bill Lombard on 25 March, 2011
Line by Line – A Mathematical Puzzle Poem gives the reader clues about a mathematical poem made up of numbers. Each line gives a clue about the line following. Line by Line, Part 2 will present the solution. Here is where you can find this (somewhat ) classic poser on youtube: A Mathematical Puzzle Poem
Posted in Mr. L's Videos, Puzzle |
By Bill Lombard on 25 March, 2011
Here’s a puzzle from the California Math Communicator, the quarterly math journal for California’s math teachers from the California Math Council. The Sum Equals Product Puzzle asks the question, “Can you find two positive integers whose sum equals their product?” Bill Lombard shares this problem and shows several extensions of this puzzle about number sense. [...]
Posted in Mr. L's Videos, Puzzle |
By Bill Lombard on 22 March, 2011
I’ve just posted a new video at my mathvideouniversity site on youtube called Reverse the Math Puzzle Using 2, 3, and 4. This puzzle uses the numbers 2, 3, and 4, along with standard operational symbols of mathematics to create the numbers 1 – 10. The reason it’s called Reverse the Math is that the [...]
Posted in Mr. L's Videos, Pedagogy, Puzzle |
By Bill Lombard on 20 March, 2011
Here are some solutions for the puzzle I posted last week, that of finding a solution to making a magic square not using addition, but with multiplication. The first solution, using powers of ten, occurred to me since multiplying numbers with the same base simply amounted to adding the exponents. This is a great way [...]
Posted in Puzzle |
By Bill Lombard on 15 March, 2011
The developers of GeoGebra have created a version of the algebra/geometry/creative math software for younger students. This “slimmed down” version has much of the capabilities of its bigger cousin, but with a simplified interface. Users of GeoGebra will find no difficulty with this version, but for new users it is somewhat easier since there are [...]
Posted in GeoGebra |
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