Unit 7, Lesson 14
Estimating with Scientific Notation
Grade 8
Preparation
Lesson Narrative
In this lesson, students perform operations with numbers expressed in scientific notation, 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 express how many times as much one quantity is than the other.
Next, students use the Info Gap structure to compare planetary diameters and masses. Students will need to request information about the diameters and masses of certain planets as well as calculate how many of one will equal the other. The focus is on estimation strategies and interpreting their results in context (MP2).
An optional activity allows for additional practice multiplying and dividing large and small numbers in context.
- Generalize (orally and in writing) a process of multiplying and dividing numbers in scientific notation.
- Use scientific notation and estimation to compare quantities and interpret (orally and in writing) results in context.
Let’s multiply and divide with scientific notation to answer questions about animals, careers, and planets.
Required Preparation
None