This Compound Inequalities Question Stack is a great self-checking activity to give your algebra students some much-needed practice with solving and graphing compound inequalities on a number line. I originally created this activity to use with my Algebra 1 students. If you are thinking to yourself that “Sarah hasn’t taught Algebra 1 in years,” you …

# Inequalities

I find that one of my most-referenced set of posters in my classroom is these equality and inequality symbols posters. If you checked out my recent post with the photos of my classroom from this past 2021-2022, you might not remember seeing them. That’s because I took them down to hang up my Powers Posters. …

I created this graphing inequalities work mat when I taught Algebra 1 to help my students conceptualize what it actually meant to graph an inequality. So often, I have a tendency to just give my students a set of steps to follow without making sure they understand why we are following those steps. Why are …

I created this systems of inequalities foldable for my Algebra 1 students to glue in their interactive notebooks. This foldable gave us some quality coloring time! I found that having my students use two different colors (one for each inequality) helped them find the overlapping area. Free Download of Systems of Inequalities Foldable

Our last skill in our linear graphing unit was to write linear inequalities. I created this foldable to give students practice writing inequalities given a graph. Students were given a graph, and they had to write the matching inequality. Free Download of Writing Inequalities Given a Graph Foldable

Yesterday, we started exploring the idea of graphing linear inequalities. We’ve been graphing linear equations for a month now, so it was time to branch out a bit. I created a graphing two variable inequalities dry erase template for my 11 x 17 dry erase pockets to help students understand what it means for a point …

We started out solving absolute value inequalities by gluing a set of steps for solving absolute value inequalities in our interactive notebooks. Next, we moved straight on to a whole bunch of practice using this solving absolute value inequalities graphic organizer I created to help my Algebra 1 students organize their work. We ended up …

I created these graphic organizers to give my Algebra 1 students some structured practice solving equations/inequalities with variables on both sides of the equal sign. We started out by gluing in a set of steps to our interactive notebooks. I created six practice problems for my students to work through together. This year I am …

I created these compound inequalities graphic organizers to give my Algebra 1 students practice solving compound inequalities. We completed these graphic organizers after our compound inequalities foldable. We only did four practice problems in our notebooks for compound inequalities. I think we should have done more. Here are close-ups of each: Free Download of Compound …

We did six practice problems in our notebook over solving equations/inequalities with variables on one side. Students stapled these problems together and glued them on a single page. Some students even chose to staple their paper with the steps on top of the practice problems to condense things even further. I kinda like this approach! …

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

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 …

I created this translating algebra graphic organizer to give my Algebra 1 students practice both translating between words and symbols and identifying the parts of an expression. We completed this graphic organizer after practicing with our parts of an expression practice book, an expression equation inequality sorting foldable, and our translating algebra foldable. After discussing …

One of the things I love most about the #MTBoS is that for every idea I blog, I seem to get three or more ideas back in return. Recently, Christine Mishra left a comment on an old post from 2013 with a link to a (new-to-me) logic puzzle: Futoshiki. Christine thinks these would be awesome …

I want to highlight this one variable inequalities square puzzle shared by Public Schools of North Carolina in their Resources for Algebra Blackline Masters collection (page 1 of PDF). The file no longer exists online, but an archived version still exists due to the Internet Archive. These square puzzles are often known as “Tarsia puzzles.” …

This graphing inequalities foldable was inspired by a foldable I saw on Coffee Cups and Lesson Plans. I started this unit by drawing the different inequality symbols on my Smart Board. I wrote numbers above each symbol. Then, I asked a simple question, “Who can tell me which number is above the symbol that …

I created this graphing linear inequalities graphic organizer for my Algebra 1 students to glue in their interactive notebooks. I’ve basically thrown the textbook the rest of the way out the window. Last semester, I tried to present Algebra 1 concepts in the same order as the textbook even though my students were not using …