Illustrative Mathematics
Dividing by One-Half
Understanding when to divide by two or one-half can be confusing. Here is an activity that gives four different scenarios. It is up to your number crunchers to decide if they divide by two or one-half. The easiest way to approach the...
Curated OER
Introduction to Formal English
Ninth graders brainstorm different situations in which formal English is used. Individually, they describe how people would act if they were invited to the White House for dinner and what they would do. To end the lesson, they role...
Curated OER
DIY Lava Lamp
Students examine lava lamps and what causes them to work. In this density lesson plan students make a lava lamp and write the scientific explanation of what happens.