Introduction to Linear Equations with Two Variables
Linear equations with two variables have an infinite number of solutions.
Translating Word Problems into Inequalities
Translating word problems into inequality statements.
Practical Problem: Load Limit for a Bridge
Using an inequality statement to solve a practical problem.
Greater Than or Equal To' and 'Less Than or Equal To'
Less than or equal to and greater than or equal to inequalities are defined and illustrated.
Introduction to Inequalities and Solution Sets
Inequality statements are defined, solution sets explained, the use of a number line demonstrated, and the less than and greater than symbols illustrated.
Introducing Fractions: Fractions, the Number Line, and Measurement
This clip explains that, just as every whole number has its place on the number line, so does every fraction. The clip then talks about how to divide the number line into sections that correspond to fractions. The clip also talks about the use of fr...
Introducing Fractions: Summary: Introducing Fractions
This clip provides a summary of Introducing Fractions. It discusses how and why fractions are used, including for purposes of comparing one quantity with another, as a means by which to express division, and as a way to measure.
Renaming Fractions: Multiplying Through
This clip explains that one way to rename a fraction is to multiply both numerator and denominator by the same non-zero number. This is called multiplying through by the number.
Renaming Fractions: Fractions Marking the Same Point on the Number Line
This clip uses the number line to explain that some fractions with different names, like 1/2 and 2/4, actually represent the same number.
Writing Compound Inequalities
Step-by-step demonstration of combining inequalities.