Percent in Word Problems: Setting Up the Proportion and Determining What's Being Compared to What
This clip explains that the most important part of setting up a proportion is figuring out what number is being compared to what other number.
Percent in Word Problems: Summary: Percent in Word Problems
This clip summarizes the material presented in the lesson on percent in word problems. It touches on several of the key terms and concepts, including proportions and cross-multiplying. It also mentions some of the specia..
Perception
Philosopher Hilary Putnam talks about re-thinking his view of perception. He states that he's moving towards "direct realism"--the notion that we actually perceive real properties of things, rather than sensations concei..
Performance Appraisals
A very important, yet often neglected aspect of managerial responsibility is performance appraisal. Simply stated, appraisals measure how well an employee is accomplishing assigned tasks. They also provide a means for co..
Perimeter: Circles: Circumference, Radius and Diameter
This clip explores the perimeter of circles. "The distance around a circle is called its circumference," the clip explains. "One way to find the circumference of a circle is to know its diameter." The clip then talks abo..
Perimeter: Finding Unknown Side of a Rectangle When Perimeter and One Side Are Known
This clip uses practical problems and simple equations to explain how the perimeter formula for rectangles can be used to find the length of an unknown side, when the perimeter and length of one side are known.
Perimeter: Finding the Length of a Semi-Circle
This clip uses practical problems to explain how to find the length of a semi-circle. "The length of the semi-circle is half the length of the circumference," the clip states. "That means, once we know the circumference ..
Perimeter: Finding the Perimeter When Sides Are Measured in Different Units
This clip explains that, when the sides of a polygon are stated in different units, it's necessary to convert so that they are expressed in the same units. Once this is done, the sides can be added up and the perimeter d..
Perimeter: Introduction to Perimeter
This clip introduces the term "perimeter," which it explains "...refers to the distance around a polygon." The clip references some of the more common polygons, including triangles, pentagons, hexagons and octagons. The ..
Perimeter: Perimeter and Irregular Polygons
This clip explains that, " we can find the perimeter of any polygon by adding the lengths of all sides." The clip includes practical problems and examples which demonstrate how this is done.