1. Dimensional Analysis

2. Objective: Today I will be able to:
Apply significant figures to solving problems
Apply dimensional analysis to solving problems
Informal Assessment – monitoring student questions and interactions as they complete the practice problems
Formal assessment – analyzing student responses to the exit ticket and practice problems
Common Core Connection
Make sense of problems and persevere in solving

3. Lesson Sequence Evaluate: Warm-Up
Engage/Elaborate: Real life Dimensional Analysis Problems
Evaluate: Exit Ticket

4. Warm - Up
Why don’t you count significant figures in a conversion factor?
What do you base significant figures on in a dimensional analysis problem.
Solve the problem below. Show all work and round to the correct number of significant figures.
How many seconds are in the 7 hour school day?

5. Objective Today I will be able to:
Apply significant figures to solving problems
Apply dimensional analysis to solving problems

6. Homework Bring Technology to use for class Tuesday.
Study for Intro to Chem Quiz Wednesday
Lab Safety
Accuracy and Precision
Scientific Notation
Sig Figs
Dimensional Analysis
Finish Collecting STEM Fair Data

7. Agenda Warm-Up Real Life Dimensional Analysis Practice Problems
Exit Ticket

8. Dimensional Analysis Practice
Complete the practice at your desk. Show all work. Write answer to correct number of sig figs.Will be collected

9. Exit Ticket
Review
Solve and record your answer to the correct number of significant figures.
4.276 x 520 =
.0025 x 3.15 =