This lesson is about Systems of Equation by Elimination. It includes Notes, Practice and a Check-up. Notes are guided notes and can be completed in class in just a few minutes or can be used in a Flipped Classroom. The Practice begins basic and quickly becomes more involved. It also includes two application problems and four review problems. The Check-up is a short assessment to assess student knowledge immediately after the practice. It can be graded by the teacher, graded by the students or se