1.  STEM Fair, Math Assessment, Scientific Notation Chemistry GT 8/26-27/15

2. Drill  You do not need to write drill this down.  Fill out “STEM Fair” (1/2 sheet) with information about your STEM Fair project.  Please pass your Milk Labs to the front.  HW:  Rules for Exponent Math WS  Get the Parent Letter Confirmation filled out and fill out the Self-Evaluation and Tech Inventory – both are online at msbloedorn.weebly.com (if not done already)

3. Objectives  IWBAT  Discuss the timeline for STEM Fair  Show my current math preparedness  Convert numbers into and out of scientific notation  Multiply and divide with scientific notation

4. Agenda  Drill  STEM Fair Info  Math Preparedness Assessment  Scientific Notation & Scientific Method  Precision and Accuracy  Safety  Closure

5. STEM Fair  I know you all have been collecting data over the summer… right?  Data should be ready for analysis by the fourth week of school (September 15/16)  If you haven’t gathered data, get to it!  If you have a question about YOUR project, make an appointment to see me before or after school. If you do not have a project (you’ve already spoken with me), I’ll let you know what to do next week.

6. Dates Assignment Timeline 2015-16 Assignment Due Date A/B Data Analysis and Graphs October 15/14 Conclusion November 19/20 Abstract December 18/17 Posters and Presentations January 26/25 Howard High School STEM Fair TBA Howard County STEM Fair TBA

7. Math Preparedness Assessment  First, this is NOT a test or quiz  I need to know where your math skills are, for you to be successful in Chem GT  These are all skills you should have, coming in to the class.  NO calculators!  Bring it up when you are done

8. Scientific Notation  Turn this into standard notation:  2.3 x 10 4 m  8.04 x 10 -2 s  Turn this into Scientific Notation:  3,400,000 g  0.0032 L

9. Scientific Notation  Shall we review the concept?  Notes!  Converting  Multiplying and dividing without a calculator

10. Scientific Notation  Let’s practice with some worksheets.  Scientific Notation/Calculations

11. Calculations WS Review 1. 5.3 x 10 8 2. 4.0 x 10 14 3. 2.0 x 10 4 4. 2.0 x 10 1 5. 1.5 x 10 3 6. 4 x 10 8 7. 6.2 x 10 -6 8. 3.4 x 10 -5 9. 4.9 x 10 1 10. 5 x 10 3

12. Scientific Method Qs?  What are the steps to the scientific method?  Any questions about it?

13. Precision vs Accuracy  I will draw a target and discuss the diagram.

14. Precision & Accuracy  What is precision?  Precision is how close a series of measurements are to each other.  What is accuracy?  Accuracy is how close a measurement is to a “standard”. For example, the center of a bullseye.

15. Sports Examples http://blog.affinitymed.com/wp- content/uploads/2009/06/6-7-09-kobe- shooting-in-the-paint-small.jpg http://i.cdn.turner.com/si/multimedia/photo_gallery/08 08/oly.phelps.sequence/images/opgm-37117-mid.jpg

16. Accuracy and Precision Lab  You will work in the same pairs as Monday.  Now, go into the lab and follow the directions to gather data for Trial 1 of the Accuracy and Precision Lab.  All done? Come back to seats and do the calculations for Trial 1.  Record your percent error on the board.

17. Safety  Let’s watch the safety videos.  https://www.youtube.com/watch?v=XYbOS mYme6Y https://www.youtube.com/watch?v=XYbOS mYme6Y  We will also do a safety “tour” of the room and look at the safety contract.  Do you know what to do for the drills?  Fire? Duck, cover, and hold? Lockdown?

18. Closure  How accurately can one measure using a ruler? Using a graduated cylinder?  Is there a formal way to represent this concept?