KenKen Presentations at NCTM 2011 Annual Meeting
I’ve asked for the information download link for the conference handouts and other information from the presenters below. I’ll post the link as soon as it is available. I’m glad to see so much interest in this fabulous puzzle. KenKen is now the main topic at two independent presentations at the National Council of Teachers [...]
Video – Sum Equals Product Puzzle – Part 1
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. [...]
Magic Square Products Solutions – a New Twist on an Old Puzzle Pretzel
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 [...]
Magic Square Products – a New Twist on an Old Puzzle Pretzel
Most of us are familiar with magic squares. They are square arrays of numbers such as the one shown here. The sum of each row, column, and major diagonal is the same, hence the name. The first time students are posed the challenge of creating one, they invariably say “It’s impossible.” After seeing one [...]
Mr. L’s YouTube KenKen Video
I got an email from YouTube a few days ago asking if I was interested in YouTube’s Partnership Program. This program allows video makers the opportunity to place ads next to their videos and receive a share of the revenue. I was surprised at this, so I visited my KenKen video, KenKen 4×4 Introduction and [...]
Games and Puzzles that Reach the Kids and Teach the Standards
The title of this post is from a conference session at the California Math Council conference at Asilomar in December, 2009. You may download the handout, with instructions for some activities, through the following link: Games and Puzzles that Reach the Kids and Teach the Standards – download file Puzzles and Games are a great [...]
Do you have a conference or staff development activity coming up? Find out why you should