Signed Fractions: Why Negative Fractions Are Important
This clip explains that, "
it's just as important to introduce negative fractions as any other negative numbers." The clip then provides practical examples of how and when negative fractions are used, such as when money is owed or when the temperat...
Signed Numbers: Absolute Value
Using a number line as a frame of reference, this clip explains that "
the absolute value of a number is its distance from the origin" So, negative 3 and positive 3 both have the same absolute value of 3. "We think of absolute value as an ordinary ...
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 Fractions: Solving Equations Whose Solutions Are Negative Numbers or Fractions
This clip explains that, now that we understand signed numbers and fractions, we can solve equations whose solutions are not necessarily whole numbers. The clip states that, "
in general, it doesn't matter whether our equations involve positive or ...
Common Dimensions of Right Triangles
There some common right triangles in which all three sides are integers, such as a triangle with sides measuring 3, 4, and 5. Any triangle with sides that are multiples of these integers, called a similar triangle, you can be sure is a right triangl...
Variables and the Greatest Common Factor
To factor completely, the greatest common factor must include every number and variable that is a factor of each term in the polynomial. A demonstration of how variables can be a part of the greatest common factor.