Students participate in an activity to simulate direct variation. In this oil spills on land lesson, students participate in a simulation using toilet paper and vegetable oil to explore the characteristics of direct variation. They identify the relationship of direct variation in real-world problems.
Direct and Inverse VariationThe idea of direct variation sounds too formal to be easy. Actually, its a simple idea with a simple formula. The constant of proportionality is another fancy name for a simple multiplication factor. This collection has several videos, worksheets, and one multi-page resource with several activities.9th - 12th Math