Resource: Coherence Map
Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other. For example, estimate the population of the United States as 3 × 10^8 and the population of the world as 7 × 10^9, and determine that the world population is more than 20 times larger.
EdSearch is a free standards-aligned educational search engine specifically designed to help teachers, parents and students find engaging videos, apps, worksheets, interactive quizzes, sample questions and other resources. Educators can select resources of their choice and design a resource kit for their students in minutes! They can assign a collection of resources to an entire class, a small group or just one student and monitor progress. Using EdSearch, you can