Students were only provided the equations for the stem of the tree (shaded grey). The above is a screenshot of a completed activity, with all equations correctly written. The ultimate goal for this exploration was for students to come up with equations for all line segments making up the holiday tree below: Going into the lesson, students already knew how to graph a line given its equation, but they had only just begin working the other way around-to write an equation given the graph of a line. As you read through the activity students completed, you’ll see how tech enabled students to visualize the process of writing linear equations and also required the participation and attention of every student in the classroom. My goal was to incorporate technology to create a healthy sense of competition and collaboration among students. Since students would be completing this activity the day before winter break, we decided to give it a holiday theme. One of my colleagues (Jeff Bellestri) and I teamed up to create an engaging and fun way to teach 9th grade Algebra 1 students how to write equations of lines. Preview of Desmos portion of activity where students use movable points to visualize how to write equations of lines Please feel free to copy/modify and use with your classes. You’ll find the Pear Deck we used at the very end of this blog post. This activity teaches students how to write equations of lines with a restricted domain. I’m excited to share this really successful activity – perfect for Algebra 1 students! You’ll see in the below writeup how using Desmos and Pear Deck made this difficult task not only doable but also fun.
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