Standard 7.RP.3

7.RP.3 Solve real-world and mathematical problems involving ratios and percentages using proportional reasoning (e.g., multi-step dimensional analysis, percent increase/decrease, tax).

Grade(s): 7

Subject(s): Math

Year: 2015

Lesson

Eli Whitney invented the Cotton Gin and in turn changed the path of America and its fortune. Read this excerpt from his obituary: Judge Johnson, of South Carolina, speaking of this invention, in 1807...