Solving Single Step Linear Equations
Expected Prior Knowledge:
 Like terms
 Combining like terms
 Whatever you do to one side of the equal sign, you must do to the other side
I CAN SOLVE LINEAR EQUATIONS
I am teaching you how to solve single step linear equations. You've probably already
solved linear equations; you just didn't know it. Back in your early years, when you were
learning addition, your teacher probably gave you worksheets to complete that had
exercises like the following:
Once you'd learned your addition facts well enough, you knew that you had to put a "2"
in the box. Solving equations works in much the same way, but now you have to figure
out what goes into the x, instead of what goes into the box. However, since you're older
now, the equations can be much more complicated, and therefore the methods you'll use
to solve the equations will be a bit more advanced.
I DO
* Introduce the math vocab term Inverse Operations through use of Taylor Swift’s song
“You belong with me”.
* Formative Assessment of student comprehension of inverse operations using hand
signals.
* Use dating story/manipulate numbers, letters and operational signs to hook students on
the process of solving a linear equation. Use key vocab words such as: inverse operation,
variable, isolate the variable, etc.
* Model to students the process of solving a linear equation by adding, subtracting,
multiplying and dividing. Also when the variable is placed on the right side of the equal
sign.
* Model to students the process of checking their answer when solving linear equations
* Key Points: The sign in front of the number tells what operation the number is
“doing”. If there is no sign, it is positive.
WE DO
*Students chose from the following options to practice their skills
~ Use cut out numbers, letters and operation symbols to create and solve linear equations
~Solve linear equations on white boards
~Partner A speaks the steps of solving the linear equation as partner B writes
~Specifically write out in words the steps when solving a linear equation
~Use paper/pencil to solve linear equations
YOU DO
* For independent practice, students will be assigned problems in which they will need to
solve mathematically, check their answers and write word instructions on how they
arrived at their answer.
* Note: Students may choose from the “WE DO” list to demonstrate their knowledge of
the lesson to the teacher.
* Benchmark students will receive problems with negative numbers, fractions and
decimals
* Under benchmark students will be allowed the use of a calculator
Common Core State Standard:
8.EE.7 a and b
Materials needed:
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Cut out letters, numbers and operation signs
White boards/markers/erasers
Paper/pencil