Welcome to Chemistry!This is Room 393 Mr. Koontz

DO NOW:

• Pick up 4papers up front

• Your card is on a spot at one of the tables, find your last name and have a seat(See me if you cannot find your card)

• Take a moment to write what you want me to call you (first name) and a pronunciation guide for your last name if needed

Objectives: • Meet everyone

• Find out about class and how it works

• Introduce first standard and significant figures

Agenda:• An introduction to Chemical

Systems• Introduce Learning standards• Identifying Significant figures

(dealing with zeros)Assignments

• Scientific Calculator due as an assignment this Friday September 11th

• Things Due Monday: September 14th

– HW 1– Dedicated Spiral Notebook for

this class– Quiz on Sig Fig and rounding– Lab Safety Contract Signed by

parent/guardian/yourself

• Hand in the air

– My hand goes up I say Heads Up

– You stop talking and look at me so I know your are ready.

Attention Getter

Welcome!Mr. Koontz

Title your Paper

• First the Last name PRINTED

• Date: 9/9/2015

• Period:

Chemical Systems Finals review

1. I am giving you one of the questions for the final right now to practice with:

2. Watch the Demonstration and describe with as much detail as possible using the best variety of words, visuals, data(sample OK), calculations on the provided paper.

Did you think about:

• Observations? Did you have detailed quantitative (number) and qualitative (words, visuals) observations?

• What forms of matter you saw/changed? • What kinds of energy transformation/transfer

you saw/experienced• Think about a systematic way of describing what

happened? • Do your diagrams show the changes?• Did you make any inferences?

To your shoulder partner:

• Compare notes discuss the what you saw

To your face partner:

• Switch papers write down one question or suggestion and sign it with your three intials of your name- Timothy Andrew Koontz - TAK

Get up and move

• Take your card and your stuff and get up and move. . Until the music stops

• Find the nearest person that has your color card. Find out what their favorite food is and be ready to report out.

• Keep moving mix it up until the music stops

• Find the nearest person you don’t know with a card with a different color. Find out what their most memorable moment in a science class has ever been and be ready to report out.

• Keep moving mix it up until the music stops

• Now notice your card has a number on the upper left. You may find any seat with your number and sit there (look at the tables the numbers are written on there)

• This will be our initial seating chart, so come back and sit there tomorrow.

1

4

3

On the back of your card. . . (the side with the lines)

• List 5 things that are unique about you

• Make sure your name is NOT on this side of the card!!!

What a typical day looks like…

• First few minutes – agenda and “Do Now”(could be homework or lab quiz)

• Activity of the day: Labs, lectures, groupwork, practice for assessments, assessments.

• Last few minutes – end class all together

Welcome to Chemistry! Thursday Sept 10, 2015This is room 393 Mr. Koontz

DO NOW:

Name an energy transformation you saw yesterday. ( name the initial form of energy and final from of energy)

BE ready to share out. Discuss with your table everybody be ready to talk about it.

Objectives:1. Quantitative Tools for Chemistry: complete calculations using factor analysis, S.I. Units, Scientific Notation and demonstrate use of Significant Figure Rules.

Agenda:• Procedure of the day/Syllabus

topic of the day

• Introduction to significant figures

Assignments.

• Scientific Calculator due as an assignment this Friday September 12th

• Things Due Monday: September 14th

– HW 1

– Dedicated Spiral Notebook for this class

– Quiz on Sig Fig and rounding

Syllabus topic of the day

• What to bring to class every day

• Get a spiral notebook (200pg is reccomended!)– due on Monday September 14th.

• Bring a scientific calculator every day! Smart phones will NOT BE ALLOWED. – We will be using the calculator everyday starting

tomorrow

– Calculator check will be Due this Friday September 11th as a notebook grade.

• Pencils and pens (pencils are easier to erase)

Notebook

• The Notebook is its own grade category and is worth 15% of your grade

– Low notebook scores correlate with low assessments in class so DO YOUR HOMEWORK!!!!!!

• The notebook grade will have:

– Classwork: practice in class could be finished at home.

– Homework: practice specifically completed at home.

• Your first homework is due Monday September 14th

Numbers

• At your table as a group discuss and pick the most famous number you can think of.

• Use a small whiteboard and have person 1b write down that number as completely as possible with as much information as you think needed

Most numbers in science come from measurements from devices

• Measurements are made with tools and devices that have limited amounts of precision

• I may weigh these weights in lb:

• A bathroom scale may read 170

• A doctor’s scale may read 171

• A Science lab scale may read 171.4

SIGNIFICANT FIGURES (what about those zeros?)1. All non-zero digits are significant.

825 has three sig. fig. 2. Zeros located between non-zero digits are significant.

2007 has four sig. fig. (sandwich rule)3. When a decimal or mixed decimal ends in zero, the zero

is significant. 43.270 has five sig. fig. (right book end rule)

4. When a whole number ends in zero (with no decimal point), the zero is not significant.

400 has one sig. fig. (no decimal rule)5. When a whole number ends in zero (with a decimal point), the zero is significant

450. has three sig. fig. (decimal rule)

Significant Figures Handout

• Often I will give you a notes handout with the idea that you will want to annotate that handout with more information while we talk about it.

SIGNIFICANT FIGURES (what about those zeros?)1. All non-zero digits are significant.

825 has three sig. fig. 2. Zeros located between non-zero digits are significant.

2007 has four sig. fig. (sandwich rule)3. When a decimal or mixed decimal ends in zero, the zero

is significant. 43.270 has five sig. fig. (right book end rule)

4. When a whole number ends in zero (with no decimal point), the zero is not significant.

400 has one sig. fig. (no decimal rule)5. When a whole number ends in zero (with a decimal point), the zero is significant

450. has three sig. fig. (decimal rule)

Vocab is important in Science

• Significant Figure: each of the digits of a number that are used to express it to the required degree of accuracy, starting from the first nonzero digit.

Sig Fig Rally coach

• Get a piece of paper out one per shoulder partnership.

• Put both names on

• The period

• The Date 9/10/15

Rally coach work

With your shoulder partner. . . . . . .

Are you an “A” or “B” partner (at your desk)

RallyCoach

• Partners take turns, one solving a problem while the other coaches.

• Partner A solves the first problem• Partner B watches and listens, checks, coaches if

necessary, and praises.• Partner B solves the next problem• Partner A watches and listens, checks, coaches if

necessary, and praises.• Partners repeat taking turns solving successive

problems.

1a 25.0801b 0.003502a 20,0002b 200.3a 150.003b 10104a 3900.0014b 0.0000105a 1.5005b 500.06a 253406b 100.001

25.080 50.00350 320,000 1200. 3150.00 51010 33900.001 70.000010 21.500 4500.0 425340 4100.001 6

1a 25.0801b 0.003502a 20,0002b 200.3a 150.003b 10104a 3900.0014b 0.0000105a 1.5005b 500.06a 253406b 100.001

1a 42.010

1b 55.2001

2a 101010

2b 0.1000

3a 0.1010

3b 0.0001

4a 1000.

4b 2000

5a 501.001

5b 1000.0000

m) 42.010 5

n) 55.2001 6

o) 101010 5

p) 0.1000 4

q) 0.1010 4

r) 0.0001 1

s) 1000. 4

t) 2000 1

u) 501.001 6

v) 1000.0000 8

1a 42.010

1b 55.2001

2a 101010

2b 0.1000

3a 0.1010

3b 0.0001

4a 1000.

4b 2000

5a 501.001

5b 1000.0000