I saw an informercial about brainetics. This man was selling "Brainects" and students were doing all these math problems in their heads. 3 digit x 3 digit multiplication, 2 digit x 2 digit multiplication, division, etc. in a matter of seconds. I was interested immediately. I used youtube to teach multiplication as well as to show my students some of these multiplication tricks. I then explained further "why" these multiplication tricks worked which was kind of brilliant but kind of a scam since it was using the basic principals of multiplication.
Here is an example:
http://www.youtube.com/watch?v=LxvBwBTWngc
No comments:
Post a Comment