Liar liar is a very engaging magic effect, which takes advantage of a notion similar to the mathematical “odd + odd = even & even + even = even“ concept, and which I use in my English classes to practice the interrogative.


 Read your students’ minds & detect when they are lying.
 A very interactive trick
 Skills: Listening & speaking (interaction)
 For practicing: Simple questions & yes/no answers.

Demonstration & Explanation
Next trick: “What’s my Chore?” >>