Charleston School District
Evaluation of Roots
You mean the square root of five and five don't have the same value? Learners estimate the value of irrational roots. As they practice estimating the value, they increase their understanding of roots. The lesson is the fourth in a series...
Digital History
Digital History: Roots of American Economic Growth: Speeding Communications
Find out the many reasons why communication speed increased in the early 19th century. It wasn't just because of the telegraph.