This inequalities investigation was inspired by an activity from Discovering Algebra called “Toe the Line.” The goal of this activity is to remind students that we need to flip the inequality symbol whenever we multiply or divide both sides of the inequality by a negative number. Free Download of Inequalities Investigation

# Inequalities

Recently, I wrote a blog post sharing a set of speed dating cards I created to review absolute value, opposite, reciprocal, and opposite reciprocal using printable business cards. I used the blank template I created to create a new set of speed dating cards for a different topic: graphing solutions on a number line. I’ve …

I created these graphing linear inequalities practice books for my Algebra 1 students to glue in their interactive notebooks. Book 1 And, this is what I get for picking random problems. Did you notice that all of the graphs ended up being greater than except the last one? I was SO frustrated when I realized …

I created this writing absolute value equations and inequalities foldable for my Algebra 1 students to complete and glue in their interactive notebooks. We completed this foldable after exploring absolute value relations and creating an absolute value foldable. Students were given graphs of various absolute value equations and inequalities, and they had to determine the …

I created this one variable inequalities card sort activity for my Algebra 1 students to complete before we moved on to looking at two variable inequalities. Students are given five number lines and five equations/inequalities to match up. I created the number lines for this card sorts using GraphFree.com. I printed the card sort on …

I decided to create a two variable inequalities card sort activity to introduce the topic to students before we even took notes over the topic. My students actually ended up completing two card sorts. I like to place students in pairs and have them start by solving a one variable inequalities card sort activity to …

I’m super excited to be sharing another guest post with you today. Today’s post is from Susan Hewett. Susan is a frequent commenter on my blog, and I always love reading her comments because of her unique insights. Susan teaches middle school math in Vietnam (how cool is that?!?), and she blogs about her experiences …

I created this compound inequalities foldable to introduce the topic to my Algebra 1 students. We glued the resulting foldable in our interactive notebooks. I have NEVER been happy with how I’ve taught compound inequalities in the past. I’ve never really given my students as reason for why we need to even deal with compound …

On Friday, my Algebra 1 students started to review inequalities. It was so refreshing to see them realize that this was something they had studied last year in 8th grade. A few students mentioned that they had never figured out how to do these problems last year, and they asked lots of awesome questions. Including …

I created this Expression Equation Inequality Foldable to give my Algebra 1 students practice translating and sorting between expressions, equations, and inequalities. We glued the resulting foldable in our Algebra 1 interactive notebooks. I’m structuring my course a bit differently this year. This year, my goal is to give my students more meaningful problems to …