september 17 & 18
DESCRIPTION
September 17 & 18. Take a CLICKER and the Metric System PRE Assessment from my desk. Ensure you are completing the side that says PRE !!! ( NOT ‘Post’). On a scale of 1-5 (1 being the least, 5 being the most) how CONFIDENT are you with #1. No clue what’s going on - PowerPoint PPT PresentationTRANSCRIPT
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HW Due YouTube Video Tonight’s HW
Metric HW handout #1 (will receive at end of class) and watch a Dimensional Analysis Video of your choice. Finish today’s Dim. Analysis problems #1-10 if necessary
Do Now
September 17 & 18
Take a CLICKER and theMetric System PRE Assessment from my desk Ensure you are completing the side that says PRE!!! (NOT ‘Post’)
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On a scale of 1-5 (1 being the least, 5 being the most) how CONFIDENT are you with #1
1 2 3 4 5
0% 0% 0%0%0%
1. No clue what’s going on2. Kinda got it, but then you
lost me3. Ehh…I’m ok4. I think I got it, but I’d like
more practice5. So confident I could teach
it to someone right now
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On a scale of 1-5 (1 being the least, 5 being the most) how CONFIDENT are you with #2
1 2 3 4 5
0% 0% 0%0%0%
1. No clue what’s going on2. Kinda got it, but then you
lost me3. Ehh…I’m ok4. I think I got it, but I’d like
more practice5. So confident I could teach
it to someone right now
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In which problem was the math easier?
1 2 3 4
0% 0%0%0%
1. #12. #23. Equal! Both 1 & 24. I really had NO IDEA what
was going on at all in
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Bill Nye
• What did you learn? Anything interesting?• Did you find the error?• Anything confusing?• Any comments?
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Metric Patrol
• NO ALCOHOL OR PRESCRIPTION MEDICATIONS (Tylenol, Advil, etc is ok)
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1030
200Questions so far?
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12 1.2
We will complete the first 2 together
2237 3.756 5.667 6.775 7.5
2.2
Questions so far?
Now you try!
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Do Not lose this paper! You will need to reference it all year!
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Lesson 1: Length
T. Trimpe 2008 http://sciencespot.net/
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English vs. Metric Units
Left Image: http://webapps.lsa.umich.edu/physics/demolab/controls/imagedemosm.aspx?picid=1167Right Image: http://share.lancealan.com/N800%20ruler.jpg
Which is longer?
A. 1 mile or 1 kilometer
B. 1 yard or 1 meter
C. 1 inch or 1 centimeter
1.6 kilometers
1 mile
1 yard = 0.9144 meters
1 inch = 2.54 centimeters
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Metric UnitsThe basic unit of length in the metric system is the meter and is represented by a lowercase m.
Standard: The distance traveled by light in absolute vacuum in 1⁄299,792,458 of a second.Complete each statement with Metric Units
1 Kilometer (km) = 1000 meters (m)
1 Meter = 100 Centimeters (cm)
1 Meter = 1000 Millimeters (mm)
Which is larger?
A. 1 meter or 105 centimeters
B. 4 kilometers or 4400 meters
C. 12 centimeters or 102 millimeters
D. 1200 millimeters or 1 meter
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Measuring Length
12 or 13 mm1.2 or 1.3 cm136 or 137 mm13.6 or 13.7 cm
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We are about to learnDIMENSIONAL
ANALYSIS.It’s a little different…But after some practice, it’s easy (And you’ll need to know this in Chem and Bio)
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Dimensional Analysis
1030 cm = ______ m?
How does the math work?
1030 cm . __1_m 1 100 cm
Multiply by a ratio of 1 (just like ratios or fractions)
What CANCELS?What REMAINS?1030 m
100
SIMPLIFY & Solve …don’t forget the unit!
10.30 m OR10.3 m
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Use Metric Magic and Dimensional Analysis to complete the following problems. Need help? Ask a friend or ask a teacher. SHOW ALL WORK, round to at least 2 decimal places!
40.64 156.492 1.9768
279.63 40.56 131.232
15.14 354.9 110.23
FIX # 5, 7, 8!!!! (They use ‘l’ instead of ‘L’
ALSO – depending how you round, your answers might vary slightly!!!
10. CHALLENGE! _____________________________mm = 1 mile1,609,000
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Do you prefer…
1 2 3
0% 0%0%
1. Dimensional Analysis (I’m a numbers person!
2. Ladder Method (way easier)
3. Either – I can see the benefits of both methods
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On a scale of 1-5 (1 being the least, 5 being the most) how CONFIDENT are you with the LADDER METHOD
1 2 3 4 5
0% 0% 0%0%0%
1. No clue what’s going on2. Kinda got it, but then you
lost me3. Ehh…I’m ok4. I think I got it, but I’d like
more practice5. So confident I could teach
it to someone right now
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On a scale of 1-5 (1 being the least, 5 being the most) how CONFIDENT are you with DIMENSIONAL ANALYSIS
1 2 3 4 5
0% 0% 0%0%0%
1. No clue what’s going on2. Kinda got it, but then you
lost me3. Ehh…I’m ok4. I think I got it, but I’d like
more practice5. So confident I could teach
it to someone right now
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Need some help with dimensional analysis?
Try this YouTube video: http://www.youtube.com/watch?v=XKCZn5MLKvk
Or these two videos from Khan Academy http://www.youtube.com/watch?v=SYkmadc2wOIhttp://www.youtube.com/watch?v=w0nqd_HXHPQ
Or this website for some detailed explanations and solved examples:http://www.alysion.org/dimensional/fun.htm
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EXIT SLIP• Complete the Post Assessment
(on the BACK of your PRE assessment) Use either LADDER METHOD or
DIMENSIONAL ANALYSIS!• Turn in at the in box• This is not for a grade, but we will return to this
next class
• Take a copy of your HWThis is not for a grade, but we will REVIEW this next class
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On a scale of 1-5 (1 being the least, 5 being the most) how CONFIDENT are you with #1
1 2 3 4 5
0% 0% 0%0%0%
1. No clue what’s going on2. Kinda got it, but then you
lost me3. Ehh…I’m ok4. I think I got it, but I’d like
more practice5. So confident I could teach
it to someone right now
![Page 23: September 17 & 18](https://reader035.vdocuments.site/reader035/viewer/2022081513/568134dc550346895d9c0d78/html5/thumbnails/23.jpg)
On a scale of 1-5 (1 being the least, 5 being the most) how CONFIDENT are you with #2
1 2 3 4 5
0% 0% 0%0%0%
1. No clue what’s going on2. Kinda got it, but then you
lost me3. Ehh…I’m ok4. I think I got it, but I’d like
more practice5. So confident I could teach
it to someone right now
![Page 24: September 17 & 18](https://reader035.vdocuments.site/reader035/viewer/2022081513/568134dc550346895d9c0d78/html5/thumbnails/24.jpg)
In which problem was the math easier?
1 2 3 4
0% 0%0%0%
1. #12. #23. Equal! Both 1 & 24. I really had NO IDEA what
was going on at all in
![Page 25: September 17 & 18](https://reader035.vdocuments.site/reader035/viewer/2022081513/568134dc550346895d9c0d78/html5/thumbnails/25.jpg)
Please return your clickers!