Sexual Orientation and Genetics (Part Two)
Dean Hamer, Director of the Gene Structure and Regulation Unit at the National Cancer Institute, expands on his discussion of sexual orientation and genetics. Dr. Hamer explains that work with identical twins has provide..
Shades of Gray
Nobel Prize winning professor of psychology Daniel Kahneman talks about an early experience that shaped his view of humanity and fostered a lifelong awareness of the complexity of the human psyche.
Shadow Zones
Renowned oceanographer and geophysicist Walter Munk talks about shadow zones, which develop in response to surface heating and other geophysical phenomena, and behind which the volume of sound is much lower than in surro..
Shortcut for Simplifying Radicals Before and After Multiplying
To avoid having to find perfect square factors for a large number by multiplying two radicals, first look for a common factor in the radicands that can be factored, then multiply.
Shortcut for Solving Equations, A
Any term in an equation can be transferred to the other side if you change the sign. An explanation of this shortcut for solving equations.
Shortcuts for Solving Equations
A review of shortcuts that can be used in solving equations.
Show and Tell
The sales demonstration is a proven way to strengthen a consultative sales presentation. A well planned demonstration attracts the customer's attention, stimulates interest and creates desire for a product or service.
Signed Fractions: Adding Signed Fractions
This clip explains that the rules for working with signed fractions are exactly the same as for any other signed numbers. "Wherever you find the negative sign," the clips states, " move it out in front of the entire fra..
Signed Fractions: Dividing Signed Fractions
This clip explains that, when dividing signed fractions, the basic approach is the same as any operation with signed fractions. Once we figure out what's being divided into what, we divide the absolute values. And, in th..
Signed Fractions: Exercise on the Absolute Value of Fractions
This clip explains that, like signed whole numbers, signed fractions have absolute values " and they work in exactly the same way. For example, the absolute value of 6/7 is just that, 6/7, but the absolute value of nega..