Relationships Between Quantities

Why Variables image modified from clipart Everyone loves math until there are letters (known as variables) in problems!! Do students complain about reading when they come to a number in a book? So why do students become frustrated when they see letters (known as variables) in math problems. Variables represent numbers . . . This seems like a simple statement, but it is very powerful when you can understand variables are nothing more than numbers. Variables can be used in problems when we do not know the value of a number. In this unit, we will look at variables and how we can use them to solve and simplify expressions, equations, inequalities, and formulas.

Essential Questions

Module Minute

module minute

When working math problems, it is important to consider the units of your answer. Many problems deal with finding an unknown value (variable), so it is important to consider what the answer (number equal to variable) represents. Graphs help us visualize data. To ensure everyone views the data the same, it is important to label the graph's axes and their scales. Expressions, equalities, inequalities, and formulas have different components or parts. By recognizing these different parts (or pieces) and what they represent, is it easy to understand the whole expression. Instead of being afraid of letters in math, we need to understand why they are being used, what they represent, and how to solve for them. Finally, we can substitute our answer/s in for the variable/s to see if they work.

Key Terms

 

learning activity Solve the crossword puzzle. There are no spaces for 2 or more words. You can click re-start and get a new puzzle.
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