HMWK: problems from yesterday's post PLUS find the slope and equation to represent the two lines we graphed in class today.
Today we:
-practiced dimensional analysis with more silly units ex. Simplify: (worms/apple)/apple , etc.
-tested the items we measured density on yesterday - do they float in water / oil? and shared results. Some groups had to re-measure their blocks as a result.
Completed labs turned in, if incomplete, finish up and get turned in by Friday. A complete lab should have:
Title
Page #
All questions answered/work shown / data complete
Correct measurements, densities, and units for the 5 items we measured.
We started a graphing activity that's mixed graph analysis, dimensional analysis, and scientific method practice. A data table was posted with heights of grass in Mr. Freeman's unwatered yard vs. Mr. Pounds's watered grass. The best type of graph to represent the data turned out to be a scatter plot graph with a line of best fit, and classes were asked to find an equation to represent each line as homework. How do you do this? First you need to find slope for each line. To do this, find two points' coordinates ( like (x,y)) that your line crosses through using your graph paper. Next, subtract the change in y values (height). This is your "Rise". Subtract the change in x values (days). This is your "Run". Find your line's slope by dividing (Rise / Run).
This slope is the "m" in the y=mx+b equation format (this is called slope-intercept form).
Finally, you need the "b" for your equation; it is the y-intercept, or the place where your line crosses the y-axis. This number should be around 44-46mm for our graph example.
Your graph's equation will be the y=mx+b equation, with your slope as the "m" and your y-intercept as the "b"
Also today - Announcement: EXAM next WED.
How will I be assessing your understandings and knowledge? See the page handed out in class today:
Unit 1 Assessment categories: (I expect you to perform well in all of the following areas)
1. Why is SI important/valuable? What are drawbacks of SI? (vs other measurements)
Use SI prefixes to represent quantities and convert between measurements:
2. Express (some measurement) in: a. (some SI unit) b. (different prefix, same unit) c. “ “
3. Determine the density of the object provided to you. Relate this item’s density/ characteristics relative to others.
4. Use tools to measure real items accurately and precisely, using appropriate SI units.
5. Design or critique an experiment using your understanding of science and experimentation.
6. Use density values to determine the volume or mass when one is unknown. Ex. Find mass of 1 liter of water.
7. Represent results from an experiment visually with an appropriate, correct, complete graph.
8. Use a graph to interpret data, explain observations, and predict other events.
Wednesday, August 31, 2011
Tuesday, August 30, 2011
8-30 Density Lab!
HMWK: p. 32#1-4,9,11-13, 21-29 DUE THURSDAY.
Also, finish density measurement lab.
Today in class: measuring 5 items' densities; measuring and calculating volume, measuring mass, and then creating the derived unit of density.
We will double-check your measurements tomorrow with some containers of water and oil; if you find something that floats/sinks that you don't expect from your measurements, then you definitely need to re-measure!
Also, finish density measurement lab.
Today in class: measuring 5 items' densities; measuring and calculating volume, measuring mass, and then creating the derived unit of density.
We will double-check your measurements tomorrow with some containers of water and oil; if you find something that floats/sinks that you don't expect from your measurements, then you definitely need to re-measure!
Monday, August 29, 2011
8-29 Today in class
HMWK: Finish Pre-lab and have data table ready to go in lab journal for tomorrow.
Dimensional Analysis - algebra - how to simplify when dividing units, fractions, etc. Practice page for you to keep.
Some examples of the problems we tried:
Simplify: (ducks/pond) / ducks = 1/pond
(ducks/pond) * ducks = ducks^2/pond
((N*m)/s) / s = N*m
(J/s)/(J/s^2) = s
as well as some plain old number/fraction problems
We started our density lab today and set up lab journals:
1st page: Lab notebook rules & Table of Contents:
1 Use pen only.
2 Tape instructions to left hand page.
3 Write on Right Hand page only.
4 Name all labs
5 Write neatly
6. Draw a single line through anything to omit. Do not use White-Out.
Table of Contents(below): Lab name: Page#:
We started our density lab. See here for a lab sheet or here for a makeup of the entire lab (we will finish on Tuesday)
Dimensional Analysis - algebra - how to simplify when dividing units, fractions, etc. Practice page for you to keep.
Some examples of the problems we tried:
Simplify: (ducks/pond) / ducks = 1/pond
(ducks/pond) * ducks = ducks^2/pond
((N*m)/s) / s = N*m
(J/s)/(J/s^2) = s
as well as some plain old number/fraction problems
We started our density lab today and set up lab journals:
1st page: Lab notebook rules & Table of Contents:
1 Use pen only.
2 Tape instructions to left hand page.
3 Write on Right Hand page only.
4 Name all labs
5 Write neatly
6. Draw a single line through anything to omit. Do not use White-Out.
Table of Contents(below): Lab name: Page#:
We started our density lab. See here for a lab sheet or here for a makeup of the entire lab (we will finish on Tuesday)
Friday, August 26, 2011
8-26 Friday!
Today we practiced graphing and discussed types of graphs, what to have, and how to apply rules that we already know, using examples we did in class.
We also looked over all the answers to the homework that was collected today.
Grades should be posted soon on Edline; I want to make sure everyone's late work, etc. is entered before I post.
Have a great weekend, and remember to
bring Lab notebooks on Monday
We also looked over all the answers to the homework that was collected today.
Grades should be posted soon on Edline; I want to make sure everyone's late work, etc. is entered before I post.
Have a great weekend, and remember to
bring Lab notebooks on Monday
Wednesday, August 24, 2011
8-25 - Graphing!
Homework: Read p. 18-26; p. 21#1,2,4,5 and p. 26#1,5, and explain why there are problems with #2. If you can't pick out a problem with #2, we'll discuss in class.
In class today: hand out books for folks who were gone yesterday.
copy textbook to flash drives or hand out CDs for those who have computers and couldn't get online yet or anyone who wants one.
Discussed answers and showed solutions for the scientific method, conversions, and algebra review WS
Notes: Graphing - get a copy here.
Whiteboard activity: Graphing - heights in group, different transportation to school, items in pockets, relationship between age and height. - most classes will work on this tomorrow.
In class today: hand out books for folks who were gone yesterday.
copy textbook to flash drives or hand out CDs for those who have computers and couldn't get online yet or anyone who wants one.
Discussed answers and showed solutions for the scientific method, conversions, and algebra review WS
Notes: Graphing - get a copy here.
Whiteboard activity: Graphing - heights in group, different transportation to school, items in pockets, relationship between age and height. - most classes will work on this tomorrow.
8-24 Today in class:
HMWK: Read p. 18-26, and work problems #1,2,4,5 on p. 21 and on p. 26, work 1,5, and explain why #2 is a bad question based on your reading. Due FRIDAY.
Checked out textbooks. If you still want to try the online version, try out:
PLEASE try the online version of the textbook: www.glencoe.com/ose and access code: (see mr. F and save it on your computer - took down from online after getting lots of traffic from other sources)
Human Body Measurement activity / sci method/conversions review WS - went over answers in class.
Tomorrow: Graphing - why/how/which - whiteboarding too.
Checked out textbooks. If you still want to try the online version, try out:
PLEASE try the online version of the textbook: www.glencoe.com/ose and access code: (see mr. F and save it on your computer - took down from online after getting lots of traffic from other sources)
Human Body Measurement activity / sci method/conversions review WS - went over answers in class.
Tomorrow: Graphing - why/how/which - whiteboarding too.
Monday, August 22, 2011
8-22 Today in class:
Measurement Lab. HMWK: Come up with an idea for an experiment and briefly explain it. List the IV, DV, several constants, and a control group. It does not need to be realistic; this is just an idea.
Want to work ahead? Read p. 18-26, and work problems #1,2,4,5 on p. 21 and on p. 26, work 1,5, and explain why #2 is a bad question based on your reading. Due FRIDAY.
(obviously I am trying to get people to try out the online textbook.)
See Friday's post for a link and a code.
Once you enter it, select the page navigator and pick a page. This will take a few moments, but will open a PDF of the entire chapter. You can then save the chapter to your local computer if you wish.
**You might take a few minutes and just download all the chapters and not have to worry about internet access again.
Tomorrow: Notes: Precision and its application to measurement. Activity: SI/Metric vs. Standard/old english measurements.
Homework: Review notes/worksheets up to this point.
Want to work ahead? Read p. 18-26, and work problems #1,2,4,5 on p. 21 and on p. 26, work 1,5, and explain why #2 is a bad question based on your reading. Due FRIDAY.
(obviously I am trying to get people to try out the online textbook.)
See Friday's post for a link and a code.
Once you enter it, select the page navigator and pick a page. This will take a few moments, but will open a PDF of the entire chapter. You can then save the chapter to your local computer if you wish.
**You might take a few minutes and just download all the chapters and not have to worry about internet access again.
Tomorrow: Notes: Precision and its application to measurement. Activity: SI/Metric vs. Standard/old english measurements.
Homework: Review notes/worksheets up to this point.
Friday, August 19, 2011
8-19
HMWK: Finish conversion WS from yesterday (see yesterday's post for a link)
PLEASE try the online version of the textbook: www.glencoe.com/ose and access code: (See Mr. F - had to take online code down after getting lots of unrelated traffic)
Today in class:
Discussed that SI and metric are the same, as opposed to our US standard(actually English) system from British Imperial rule. Some very creative arguments for different uses of units; we will put some of these units "on trial" on Monday for some fun argument.
Notes: Conversions - How to use KHDUdcm to move decimals from one unit to another. We applied 2 rules: 1. Find how many steps to move L or R based on the prefixes in KHDUdcm, then 2. move the decimal the same way.
We used many examples and I reminded everyone not to confuse m (for meter) with m_ (with another letter) as the symbol for the mili-prefix.
Most classes got their measurement lab well underway; (4th and 3rd? ) periods didn't get to start. We'll finish the measurement lab on Monday.
PLEASE try the online version of the textbook: www.glencoe.com/ose and access code: (See Mr. F - had to take online code down after getting lots of unrelated traffic)
Today in class:
Discussed that SI and metric are the same, as opposed to our US standard(actually English) system from British Imperial rule. Some very creative arguments for different uses of units; we will put some of these units "on trial" on Monday for some fun argument.
Notes: Conversions - How to use KHDUdcm to move decimals from one unit to another. We applied 2 rules: 1. Find how many steps to move L or R based on the prefixes in KHDUdcm, then 2. move the decimal the same way.
We used many examples and I reminded everyone not to confuse m (for meter) with m_ (with another letter) as the symbol for the mili-prefix.
Most classes got their measurement lab well underway; (4th and 3rd? ) periods didn't get to start. We'll finish the measurement lab on Monday.
Wednesday, August 17, 2011
8-18 Thursday
Today in class:
Measurement notes - print out an outline here
Start in class: mini-lab: Human Body Measurement / Measurement Practice WS
Homework: DUE Monday:
Conversion Practice WS
Measurement notes - print out an outline here
Start in class: mini-lab: Human Body Measurement / Measurement Practice WS
Homework: DUE Monday:
Conversion Practice WS
Tuesday, August 16, 2011
1st day of school / Welcome to FHS!
Today in class: Introduction of Mr. Freeman
Discuss required items and options, online text option, web page
Assign Homework:
•Syllabus
•Find 10 items and make a table of their SI or metric measurements from their labeling.
(SI will be units like l, ml, g, mg, kg, cm, m, Celsius (technically K), etc.
Ex: can of refried beans - 240 grams
•Make a short paragraph argument for use of SI or standard measurement of one item.
For instance: use of gallons rather than liters or grams / kilograms vs. ounces/pounds, Celsius or Kelvin vs. Fahrenheit
• Materials you need for this class
Pencil and Pen
Calculator (scientific will be needed 2nd semester) $5-15
Graph paper Composition book (for labs and daily questions, not notes) – Office Stores or from Freeman $2.75 – due nextWed – If you want to use a regular notebook, that’s ok but you won’t be able to use it next year. If you want to use one book for this class and honors chem. (10th), you need to purchase one of these. Also, I have used ones you can tear pages from to make work for you. This will not need to be brought to class every day.
Separate Notebook for your notes – may be for my class or all classes.
Online textbook: http://www.glencoe.com/ose/
Enter the access code: (See Mr. F - had to take online code down after getting lots of unrelated traffic)
Find “Mr Freeman’s Classroom” on Facebook (if you use it) and mrfreemansclass.blogspot.com
Discuss required items and options, online text option, web page
Assign Homework:
•Syllabus
•Find 10 items and make a table of their SI or metric measurements from their labeling.
(SI will be units like l, ml, g, mg, kg, cm, m, Celsius (technically K), etc.
Ex: can of refried beans - 240 grams
•Make a short paragraph argument for use of SI or standard measurement of one item.
For instance: use of gallons rather than liters or grams / kilograms vs. ounces/pounds, Celsius or Kelvin vs. Fahrenheit
• Materials you need for this class
Pencil and Pen
Calculator (scientific will be needed 2nd semester) $5-15
Graph paper Composition book (for labs and daily questions, not notes) – Office Stores or from Freeman $2.75 – due nextWed – If you want to use a regular notebook, that’s ok but you won’t be able to use it next year. If you want to use one book for this class and honors chem. (10th), you need to purchase one of these. Also, I have used ones you can tear pages from to make work for you. This will not need to be brought to class every day.
Separate Notebook for your notes – may be for my class or all classes.
Online textbook: http://www.glencoe.com/ose/
Enter the access code: (See Mr. F - had to take online code down after getting lots of unrelated traffic)
Use the above link (probably best in Internet Explorer - they have had problems with Google Chrome & Mozilla Firefox in the past)
This has everything the textbook has, plus much more (practice quizzes, etc.)
Find “Mr Freeman’s Classroom” on Facebook (if you use it) and mrfreemansclass.blogspot.com
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