#### Warm Up and Homework Check

*10 min*

I include **Warm ups** with a **Warm up Rubric** as part of my daily routine. My goal is to allow students to work on **Math Practice 3** each day. Grouping students into homogeneous pairs provides an opportunity for appropriately differentiated math conversations. This lesson’s Warm Up- Modeling and Simplifying Rational Expressions asks students to analyze to possible solutions to a simple division problem. I have found that students will often make mistakes when dividing a polynomial by a monomial so the goal of this warm up is to address those misconception prior to today's lesson. They key here is that neither possible solution is correct. One solution uses subtraction rather than division. The other, and most common mistake, divides only the first term and not the second. I think it is a valuable lesson, and a real test of students' critical thinking skills, to present two incorrect solutions and ask which is right (**Math Practice 1**).

I also use this time to correct and record the previous day's Homework.