Signed Numbers: Number Line Exercises
This clip offers practice in locating a set of numbers known as "the set of integers" on the number line. The clip explains that the integers include zero, but don't include any fractions, positive or negative.
Signed Numbers: Positive Numbers
This clip explains that the symbol for positive numbers is the plus sign. If a number has no sign at all, it's understood to be positive. On the number line, the positive numbers are lined up in order to the right of the..
Signed Numbers: Summary: Signed Numbers
This clip summarizes the use of both negative and positive numbers, as well as their location on the number line. "All these numbers," the clip states, "Â…are called 'signed numbers'." The clip also reviews how to determ..
Significant Others
Philosopher Charles Taylor talks about George Herbert Mead and the distinction he made between the "I" and the "me." The fundamental idea here is that we don't discover who we are simply from the inside. Rather, we disco..
Simple Interest
The basics of interest, formulas for and a discussion of how concepts of principal, rate and time interrelate.
Simplify first by Combining Like Terms
Equations can sometimes be simplified to present the same information in a form that is easier to work with. Simplify whenever possible by combining like terms.
Simplifying An Expression Using Many Rules
Practice applying the rules for exponents to simplifying complex expressions.
Simplifying Complex Expressions
Applying the rules for exponents to simplifying more complex expressions.
Simplifying Complex Fractions
Simplifying a complex fraction results in a single rational expression. Two approaches to simplifying a complex fraction are demonstrated.
Simplifying Expressions with Negative Exponents
Another expression is reduced to its simplest form, demonstrating the rule for dividing two monomials with the same base.