Solving Equations Using the Order of Operations Ladder with answer key-Editable

Show preview image 1

The single most powerful technique for helping my students understand how to solve equations in which the variable appears exactly once is what I call the "order of operations ladder." The ladder lists operations to the variable on the left, in the order they are performed according to the order of operations, and the inverse operations on the right.

(Explaining this in text might not be the most effective way to go. Hover over thumbnail image 3 right now, and you'll see what I'm calling an order of operations ladder looks like!)

------ hover over thumbnail image 3 ----->

For instance, if a student were to solve the equation 5x + 3 = 13,
the ladder would list the operation "multiply by 5" and "add 3" on the left side, and then starting from the bottom of the right side, the list would have the inverse operations "subtract 3" and "divide by 5."

For students to use the ladder, they must simply "climb up" the right side of the ladder, performing those operations in order.

While my students initially resist this approach, they find it invaluable when solving literal equations, and it also comes in handy when they need to do inverse functions later on.

I use this activity within cooperative groups, and I circulate to make sure they are getting the purpose of the questions.

The file includes spiral review problems.

This worksheet is intended to be written on directly.

Please download the pdf preview file first, so you can see exactly what's included; the product file is a word document, which you may personalize for your students.