WELCOME BACK I am happy to see you

WELCOME BACK! �I am happy to see you back and ready for more! �At this point, I required you to watch the pre-video, take notes on it, and be aware of what will be covered for today.

Did You Understand? Voting �For this instrument, what is the Instrument least count? �A) 10 degrees �B) 1 degree �C). 1 degree �D). 01 degree

Did You Understand? Voting �For this, which is a correct guess? �A) 2. 4 cm �B) 2 cm �C) 2. 482 cm �D) 2. 48 cm

What will happen today? �We will confirm some of Day 1 ideas and model how labs will go in this class � 1) I do 2 examples of units and dimensional analysis � 3) 3 Examples done by you, confirmed by group. On board. � 4) I teach about labs and what is expected from you � 5) Your group does the lab activity, and starts your first of many formal lab reports. � 6) We start the problems that tie in these two days. � 7) Summary, discussion of next class and how things are turned in

My Goals For Today �At the end of today, you should: � 1) Be more comfortable with using units and math � 2) See how problem solving skills in labs and problems relate � 3) Get a sense of what kind of standards I will be expecting from you in this class. Hint: They are high. You will surpass them this year.

Reminder… �You so far are responsible for being able to know different unit types and the prefixes. � Example: What is the unit for ‘how fast’ � Example: Which is larger, centi, milli, or standard? �You are expected to know the basics of dimensional analysis and are starting to understand uncertainty.

Who thinks it is important? � 1. Harvard University � 2. Anesthesiologists

Example One �How many mm are in 250 km? � 250, 000 mm

Example Two �A patient has a drug that flows at 12 c. L per minute in an IV. How many L per sec is that? �. 002 L/sec

Now its your turn… �I expect these to be on the boards around the room. Using the rules from last time that I will remind you…

You Try 1 �A)From a previous situation, an IV that goes. 05 m. L/sec is dripping for 15 minutes. How much drug passed? � 45 m. L �B) How many minutes will it take to give a patient 95 m. L of drug? � 31. 6 minutes

You Try 2 �The correct angle measurement on the protractor below is: a) 50° b) 53° c) 53. 5° d) 53. 51°

You Try 3 �You are throwing a physics pizza party for 14 people, and figure each person eats 4 slices. You know each pizza costs $12. 50 and is cut into 10 slices. Is 72$ enough to cover the costs? �Remember the wording here. What are the math limits to the number of pizzas here? �No, you need 6 pizzas (even though 5. 6 will be eaten), which is $75

So…its time to talk about Labs �Labs and their purpose �What I expect from your lab notebook (look at handout) �How/When its turned in….

Today's Lab �I need some help… �Your timeframe �The next 25? Minutes: Plan, execute, begin write -up in groups. �Computer type up at home or here is fine.

MAKE ABE PROUD!

And now �I wish to try something with you this year that I planned with some teachers and professors from JHU �Get out the problems to do for next class. �Lets do our HW here, and watch the next posted video for HW at home with notes.