This is part of a series of classroom lessons NIET is offering to help support aspiring educators during COVID-19. In this lesson, a 7th grade math teacher delivers a lesson related to a unit of study on adding rational numbers. The lesson demonstrates what high-quality classroom instruction can look like in a variety of different settings and grade levels. Download additional information and ideas for related activities (PDF). Learn more on the NIET blog, "Supporting Aspiring Teachers During COVID-19."