How well do your classes understand scale? You'll certainly know after they answer the set of eight questions from an informative and helpful presentation. Questions include items from coordinate geometry, similar triangles, and scale...

Have your class practice finding the perimeter of several given shapes. This slide show includes a definition and example of how to find perimeter along with several practice problems for the class to solve.

The many images and labeled diagrams in this PowerPoint will help learners understand different areas of the endocrine system. The slide show starts with information about the absorption of lipid and protein based hormones, and then...

The U.S. produced enough wind energy in 2015 to power all of the homes in Alaska, California, Delaware, the District of Columbia, Hawaii, Idaho, Maine, Montana, Nebraska, New Hampshire, North Dakota, Rhode Island, South Dakota, and...

This plant structure and function PowerPoint addresses the main organs and the factors that affect its development as well as going into detail about the specializations at a cellular level.   The cell functions and system...

AP environmental science or college-level ecology classes will glean a tremendous amount of information on nutrient cycles from this detailed PowerPoint. It covers nutrient requirements, biogeochemcial cycles, decomposition rates, and...

Give learners a chance to understand the practices and beliefs associated with witchcraft through an anthropological lens. Like any other belief system, witchcraft stems from specific sociological needs. This practice is well-defined in...

This lesson demonstrates how to find the scale factor. It is 2 of 5 in the series titled "Finding Scale Factors."

This lesson will discuss the relationship between scale factor and surface area of similar figures. It is 3 of 4 in the series titled "Scale Factor and Surface Area of Similar Figures."

This lesson will discuss the relationship between scale factor and volume of similar figures. It is 4 of 4 in the series titled "Scale Factor and Volume of Similar Figures."

This lesson defines the phrase scale factor. It is 2 of 5 in the series titled "Scale Factors."

This lesson will discuss the relationship between scale factor and area of similar figures. It is 3 of 5 in the series titled "Scale Factor and Area of Similar Figures."

This slide show presentation introduces the concept of order-of-magnitude, and how it is used to estimate large values in physics.

A short introduction to the concept of order-of-magnitude, with an explanation of how it is used to make estimations in physics.

This lesson presents the relationship between similar polygons and the ratio of their perimeters. It is 5 of 5 in the series titled "Similar Polygons and their Perimeters."