Do you cringe when a student declares "cross multiply!“ as soon as they see a problem involving fractions?
It doesn't matter whether you teach elementary or high school, whether you're a parent or a tutor, having a student yell out a trick without stopping to think is painful.
This FREE book, (click link to download) "Nix the Tricks!", is filled with alternatives to the shortcuts so prevalent in mathematics education and explains exactly why the tricks are so bad for understanding math.
The book is also available in other formats on its website.