Combining like terms confuses many students. But by using a special notation, the double-slash, students get a visual aid that helps them combine like terms with greater care. This post shows how to use the double-slash to combine like terms. And it offers practice problems and their solutions, too.

# Tag Archives: Using the Double-Slash

# How to Decrease Mistakes in Algebra – Part 3

The double-slash helps students for a variety of reasons. This post explains some of the reasons why it works.

# How to Decrease Algebraic Mistakes – Part 1

Algebraic expressions are covered with mental “land mines.” Step the wrong way, and an expression will blow up on the page, making it impossible for students to move in the right direction. Fortunately there’s a simple thing students can do to succeed at simplifying algebraic expressions, and that simple something is using what I call […]