2009 Halloween Math Class v2

2009 Halloween Math Class v2 is a screamer video uploaded by a YouTube user MDWeathers in Oct 30, 2009.

The video starts off with the teacher stepping behind the screen at the same time that a video shows him walking into the frame. After doing things in the video like throwing out the eraser, moving the chalkboard, spraying water (which also happen outside the video), proving 1 = 2, head turning 360°, he tell the students to spot the differences between 2 triangles. However, after a few seconds, a red zombie face is shown zooming in and out with a loud scream, ending with a "Happy Halloween!" slideshow with students' applause. He then follows by throwing the candies to the students before ending the class.

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=zx3qd2BN_6Y