Graph a angle in radians on the y axis

The video tutorial explains how to sketch π halves and understand its standard form. It begins with an introduction to the concept of π and how π/2 represents half of π, equating to a 90-degree angle. The instructor emphasizes understanding π/2 by visualizing it as half of a circle. The tutorial also covers the standard form of angles and encourages using circles in answers. Finally, the video introduces the concept of 2π thirds, setting the stage for further exploration.

What does the teacher suggest to help students understand π halves?

How does the teacher illustrate the concept of 2π thirds?