She Blinded Me With Science






         I should have worn goggles.

January 7, 2009

How to Calculate Your Semester Grade

Filed under: Chemistry, Earth Science — Ms. L @ 9:33 am

In order to calculate your semester grade, you will need three things:

1) Your first quarter letter grade.
2) Your second quarter letter grade.
3) Your midterm letter grade.

Then, you will need to convert each letter into a number, using the conversion below:
A = 4
B = 3
C = 2
D = 1
F = 0

From that, plug those numbers in to this formula below:
([first quarter number]*.375) + ([second quarter number]*0.375) + ([midterm number]*0.25) = [number representing your semester grade]

Finally, using the A = 4, etc., conversion above, convert that final number back into a letter. Anything .5 or higher rounds up to the next nearest whole number.

November 20, 2008

Birthstone Project

Filed under: Earth Science — Ms. L @ 4:54 pm
Tags:

You will create a single-sided poster containing information on the birthstone associated with your date of birth. The poster must have minimum dimensions of 8.5″ by 11″ (a standard piece of paper).

Be sure to include the resources you used to find information such as a bibliography on the back of the poster. You must have a minimum of three different resources. I shouldn’t have to remind you of this, but plagiarism is a crime and will be treated as such, so put all text into your own words.

You may supplement your poster with images, maps, diagrams, charts, etc. as long as everything is referenced correctly.

The poster design is ultimately up to you, and you must include all of the information from the guided questions below, but be CREATIVE, because a poorly-looking project will not earn as many points. Creative does NOT mean it has to be in color, or on a large poster board!

The poster will be assessed as follows:
content and accuracy – 25 points
formatting and references – 15 points
creativity and neatness – 10 points

The project is due at the beginning of class on November 25th. Late projects will be marked down by 25% for each day they are late!


Guided Questions
What color is your birthstone? What color varieties exist (if any)?

What is the mineral name of your birthstone (if it is different)?

What is the chemical formula of your birthstone (like H2O or C6H12O6)?

Describe at least five physical properties of your birthstone. It may help to look up the mineral name to find this information.

Where in the world can you locate these stones?

What country produces the most stones?

Does this stone have any special meanings – what are they?

Why was this stone picked to represent your birth month?

What is some of the folklore about your birthstone?

Are there other stones (perhaps man-made) that also represent your birth month? What are they?

Is your birthstone used for anything besides jewelry?


Some links to get you started. And don’t forget to cite your sources.

September 7, 2008

Week in Review

Filed under: Chemistry, Earth Science — Ms. L @ 7:43 am

The second week of school proved to be a positive one. Schedules continue to change for some students, but it appears that most students are where they are going to remain for the remainder of the year.

Free scientific method poster.In Chemistry, the students began the week with a lesson on the communication aspects of science. Middle school thoroughly covered the observation, questioning, hypothesis, experimentation side of the process by which scientists do their work. This leaves high school to focus on the later part: what to do with the results.

Students looked at journal articles. Investigated different articles published in the Annals of Improbable Research, a journal which is the annual sponsor of the Ig Nobel awards. Students further acted in the manner of peer reviewers, as they questioned findings and proposed alternate ones.

But, we didn’t linger too long on communication, since we will be practicing it throughout the entire year. We also needed to move ahead to other important skills; namely: graphing. Students learned the importance of graphs, the difference between line and bar graphs and when to use each, and the appropriate labels to apply to each axis on a graph.

A point of weakness that I noticed on the Friday Quiz, however, is that students sometimes invert their axes. While there is not always a cause-and-effect relationship between the x- and y-axis, I have found that in cases where there is, students will wrongly put the cause on the y-axis and the effect on the x-axis. This is because they naturally read left-to-right, so encounter the axes in that order, but it is still incorrect. Cause should go on the x-axis, and effect should go on the y-axis.

After graphing, we learned how to take measurements, including the correct number of significant figures to record. According to the Friday Quiz, this is a tough skill to master. Should students need any additional practice, they can find it here, here, and here.

We finished off the week with a Friday Quiz and then learned the basics of using dimensional analysis. Based on the Friday Quiz results, I can tell that some students are still in the “this cannot really be happening” phase of returning to school. While that is normal in the second week of school, especially after a long weekend, if they do not concentrate and focus, they could fall be hind. And since chemistry is a subject where the skills and concepts build, fixing problems early is the best way to avoid a snowball effect. All students are welcomed and encouraged to attend Thursday Lunch in-school tutoring time with me, in the classroom. Together everyone achieves more!

As for Earth Science, we began the week in the library, typing our lab reports on the Thumb Wars experiment we had just completed. While we didn’t have back-to-back days in the library, there were still two days last week that were devoted to typing up the lab report, and an additional day for peer-editing to produce a final draft that was representative of the student’s best efforts. Those lab reports, in final form, were due today (Monday 9/8).

The other day last week was devoted to learning about measurement, and we did an activity where we used a variety of different tools to measure different objects in the classroom. We did this to polish our skills with using the tools, but also to practice the new rules on recording measurements with proper uncertainty.

This upcoming Friday is Earth Science’s first Friday Quiz. Students are welcomed and encouraged to come receive extra help in the classroom on Thursday at lunch. And please remind your student that late work is not accepted. Some students seem to believe this to not be the case and so have made choices other than completing their work, in the hopes that they can do the work late. They cannot.

September 1, 2008

Week in Review

Filed under: Chemistry, Earth Science — Ms. L @ 11:10 am

The first week of school went really well.

As of today, hopefully, everyone’s schedules will be completely worked out and we’ll be ready to get into our groove for the remainder of the year.

All students were given access to their online versions of their textbooks, as referenced in an earlier post on this site. There was some trouble signing up for the textbook if they had used an online textbook in previous years, but a sign-up sheet was passed around on Friday, and will be passed around again throughout this coming week, to tackle those issues and get them registered for the book.

Also, all students were given access to Engrade, a wonderful online grading book that allows them to check their grades from anywhere that there is an internet connection. Parents, if you would like to have access to your student’s grades, please do not hesitate to send me an email and I will provide information for you to log in as well. Or, you can ask your student for their username/password. The information from either of us will be the same.

I ask that you do keep an eye on grades, as this provides the clearest indication of how you – or your scholar – is doing in the class.

You can access Engrade at any time, from my website, by clicking on the “What is my grade?” link on the left-hand navigation bar.

In chemistry, the students started the week with a presentation that clearly outlined the expectations for the rigor of the course, along with giving advice on how to succeed in the face of the challenges of the course (it is in OpenOffice format, the new format that teachers are being asked to use).

Then we spent the remainder of the week learning about lab safety (both in their actions and their awareness of chemical hazards) and learning about lab equipment. On Friday, the students had their first weekly quiz, this one on lab safety. You can access an ongoing calendar (created by my planbook program) and any time using the “When is it due?” link from the left-hand navigation bar on my website.

The students were asked to have a separate notebook – I sent home a flier making a suggestion as to what type – for Chemistry. I told them that they needed to have it by Friday, but this weekend has bought them extra time if they need it. On Monday, we shall start to load those notebooks up with factual information that they will need to reference, but not necessarily memorize.

In Earth Science, the students started the week with a bang. On our first day, after reviewing the syllabus, we jumped right in to learning information about the different disciplines grouped into Earth Science. On the second day we learned about the different spheres of Earth Science. Then, the remainder of the week was devoted to a scientific method/lab report activity known as Thumb Wars. Students were asked to pick a quantitative variable (your students can explain to you what this means and how it is different from categorical variable) that they thought would produce a champion thumb wrestler. Then, through a class-wide thumb wrestling tournament, they tested their hypothesis. Finally, we learned about variables and what I’m looking for in their first lab report. They were given sample lab reports from previous classes to use as models, though these samples are by no means perfect. Over the long weekend, they were asked to draft their lab reports. On Tuesday, we will peer-edit each other’s rough drafts and then type up a final draft in the library. Once that is done, we will move on to measurements, SI units, and different forms of mapping.

Apologies to students for whom this material is an annual repeat. I tried to do something different with it, but it is included in the required curriculum for Earth Science. We will be getting in to new and different material shortly.

You can access an ongoing calendar (created by my planbook program) and any time using the “When is it due?” link from the left-hand navigation bar on my website.

August 31, 2007

Input: Jovian Planets

Filed under: Earth Science — Ms. L @ 12:09 am

Have Ms. L check that you have done each output, before moving along to the next output.

  1. Take notes on Chapter 23, Section 3 (p. 654 – 659). Notes must include the following items: (a) all “key” sentences; (b) a listing of the outer/Jovian planets in order; (c) the moons associated with each planet; (d) at least three identifying characteristics per planet
  2. Personify the remaining planets of the solar system.
  3. Answer all questions from Section 23.3 Assessment.
  4. Weight = mass x gravity; Find out how much you would weigh on places other than Earth, by gluing the weight chart in to your ISN and completing it. “Scratch work” may be done on the input page next to it.

DivShare File – Weight_Chart.pdf

April 24, 2007

Events in the Life of a Star

Filed under: Earth Science — Ms. L @ 7:13 am

This is a listing of archived links in case any other teachers wish to use my “Events in the Life of a Star” project. In my class, this project has been retired and replaced by the science fiction short story project.

Part A and B
Part C and D
Part E

Teachers may email me from their school email account and will be provided with answer keys and additional teaching notes, if they desire. My email address is j levenbook at wcpss dot net.

January 9, 2007

Space Science is in Trouble!

Filed under: Earth Science — Ms. L @ 10:10 am

Click here to sign a petition to George Bush to stop cutting space science programs!
Some of the program cuts and delays include:

Europa mission development is cancelled.

The Terrestrial Planet Finder (TPF) development is cancelled.

The Stratospheric Observatory for Infrared Astronomy (SOFIA) is
cancelled.

The Space Interferometry Mission (SIM) is delayed.

The Juno mission is stretched out and delayed.

NASA’s Mars program was cut 40% in the past year, despite the enormous
success of the Mars Exploration Rovers
Click here to view a pdf fact sheet of all the projects cut or delayed.

January 8, 2007

1.8.2007 – Second Block

Filed under: Earth Science — Ms. L @ 11:03 pm

If you are in Second Block, here is your class recording (Mp3) from Monday, January 8, 2007. We are one class period behind third block, but should catch up on Wednesday.

December 5, 2006

“Informal Lab: Humidity and Dew Point” Common Mistakes

Filed under: Earth Science — Ms. L @ 11:59 pm

Students,

Please be aware of what you are writing when you write the answers to your questions in your lab. As there is low point value to the entire assignment, each question counts significantly into the grade. You cannot afford to just rely on previous knowledge and intuition. These labs are designed to be critical thinking exercises that require you to do some reading (of your book) and prediction based on the knowledge that you were to gain from your book.

I remind you that your written answers are the only things I have to assess your level of knowledge. In more common terms, “If you write like an idiot, I’m going to have to assume that you haven’t learned anything.” Please avoid personifying the air (it does not want, eat, sweat, try, gather, etc.). Furthermore, please avoid things that your intuition should tell you aren’t true:

A basement does not gather air over the winter. A basement does not store up water over the winter, either.
There is no sun located in a basement.
The water cycle does not take a year to complete.
Heat does not make moisture. Increased heat does not necessarily lead to to increased moisture/humidity/etc.
A high relative humidity in the winter does not mean that it has just snowed.
Summer is not always more humid. If summer means humid air, and humid air means dampness, then everything should be damp, not just a basement.
If cold air sinks, then why isn’t there a level of damp along the ground?

Some hints to do better in the future in all of your classes:

1. Finish all of your sentences and words. If you trail off in the middle of a word then no one knows what you were goin
(I did that on purpose.)

2. If an activity has a title that has a concept in it (ie “Measuring Humidity”) or comes from a textbook (ie “Chapter 22.1 Assessment”), then chances are the answers to the questions are related to the concepts referenced in the activity title. Ignoring that blatant hint essentially guarantees that you are going to get the question wrong.

3. If you don’t know what a word or phrase means (ie saturated, relative humidity, damp), then don’t use it. Better yet, utilize your textbook’s glossary or a dictionary to find out what that term means.

4. If you don’t understand what a question is asking, ask your teacher.

5. If you understand what a question is asking, but don’t know the answer, avoid at all costs a core dump of everything you ever knew about the subject from day one. This makes it very hard to locate any possible partial credit and most teachers (remember, these are hints for the future as you are about to exit my class) will just give up and not be bothered. Instead, try asking your teacher. If it is too late for that or your teacher is not around, then try reading your textbook. Rare is the teacher who asks a question when the material to answer that question is not readily available to the student.

6. Whenever you are asked to explain a “principle” of something, that does not equate to usage instructions. The question is asking for the reason behind why that object works. For example:

Question: Explain the principle behind a pencil.

Usage Instructions: Apply to paper and move in a horizontal or vertical fashion parallel to the paper.

Principle: As the graphite pencil “lead” travels over the paper, the paper scrapes away thin layers of this lead and leaves it attached to the paper. This is a record of where the pencil has been located, and leads to marks known as writing or drawing.

See the difference? One tells you how to use it (wrong for the question) and the other tells you why it works (right for the question).

7. You know those naked pronouns I’ve been getting on you about all semester? They really do matter. A sentence full of naked pronouns and no defined subject is automatically wrong.

8. Please make sure that you don’t contradict yourself within the same sentence. Answers such as, “Cookiedough is clearly a color and not a flavor because it tastes good, so it must be a flavor and not a color,” serve only to make you look like an indecisive student who doesn’t want to admit that they don’t know what they are writing about.

9. It is never the right answer to respond to a question with, “I cannot answer this question because I can’t tell whether it is [insert esoteric (look this word up, kids, it will help you on the SAT) variable that doesn't matter anyway, here] or [insert another esoteric variable that has little, if anything, to do with the first one].” This is especially the case if the question is a “true or false,” or “yes or no,” question.

10. Learn how to cite your sources properly. When I taught at UNC, we’d often take delight in kicking students out/sending students to honor court (threat of being kicked out) for plagarism. If you use someone else’s words (that includes a textbook) and do not give them credit, you have committed an academic sin. General rule of thumb: if there are two words in a row that came from somewhere else, you are safe. But the instant you add that third word in a row to the other two, you’ve got to cite your source.

11. Just because it exists on the internet, does not make it fact. Wikipedia can be edited by ANYONE (yes, including you) so it contains as many untruths as truths. Various news agencies have done stories about all the untruths of wikipedia. This is why your teachers won’t accept it.

12. Please learn what the word “other” means.

13. Some teachers might not say it, but you should always compare and contrast, even if all that the assignment says is “compare” or “contrast”.

14. Unless otherwise noted, you should always write in complete sentences. No teacher complains about a grammatically correct, complete sentence. But it will save you points in the future when you didn’t realize that it had to be in a complete sentence.

15. Always do your assigned reading. Even if you skim. Don’t blow it off. That’s just dumb. Someone went through all the effort to figure out which pages aligned to what they wanted to talk about for a reason. And yes, it is effort.

16. Data tables should look like tables, not like lists.

17. Learn to love thy planner. If you use it correctly, you will always know what is coming in the future, school-wise.

18. A picture may be worth 1000 words, but you should at least caption it so the art-illiterate teacher has some idea what you’ve just drawn.

19. Always double check your teacher’s math.

20. At least once in your life, you will be convinced that a teacher hates you, specifically. If you talk to that teacher (I recommend after you are out of their class) in a mature fashion, you might find that this is not the case. Usually, it is a perception problem on your end. For example:

Anne had a teacher who seemed like he hated all women. She struggled and struggled in his class, but he seemed to always call on her when she didn’t know the answer. He even pulled her aside once, and suggested that she switch her area of concentration in college. She heard, “Some people can do chemistry and others are women.” What he’d actually said was, “Some people can do chemistry, and others might be better suited elsewhere.”

Later on, after she’d been accepted to Med School, she went back and asked him why he hated women so much. It turns out that when he’d asked a question that she did not know the answer to, she’d make eye contact with him. So he’d call on her due to the eye contact. He wasn’t trying to be mean.

Think about it.

21. Don’t let grades define you. You are each amazing people in your own way, even if a piece of paper from a school doesn’t put the “A”s on it that you think should show that. School measures only one aspect of a person, and that aspect has everything to do with getting a good paying job, but little to do with your value as a human being.

Shoot for the moon. If you miss, at least you will be among the stars.

The big picture: You are in school to get a good paying job. What does any class have to do with you? It will prevent or aid you in getting a good paying job, even if the subject itself does not. If you keep the big picture in mind, it helps you through the tough times.

December 1, 2006

Extra Credit: Weather Report

Filed under: Earth Science — Ms. L @ 9:35 am

If done correctly, this assignment will count as an extra grade in the “Projects” category of their grade. This assignment will be graded like a homework assignment, with four possible grades: 100, 80, 50, and 0. This assignment is due Friday, December, 6, 2006. No late extra credit assignments will be accepted.

Since Day 4 of the unit has been struck due to time constraints, students are still going to be given a chance to do the weather report, but they have to do it all on their own. These weather reports should be recorded on video. This recording can happen one of two places: at home or at school during lunch on Friday.

The weather report should:
1. Be based on Raleigh, NC weather data.
2. Address all variables that we are recording in class.
3. Include a written script to be submitted with the video.
4. Include visuals to help with the reporting of the weather. (Maps, transparencies, etc. may be provided if requested at least 48 hours in advance.)
5. Last no more than five minutes.

If you decide to videotape yourself at home and wish to edit your video after shooting it, you might consider the following free video editing software programs:

Windows Movie Maker (2) — The latest version is actually quite good. Available only to those with Genuine Windows (XP, I think). Upgrade if you have WMM 1.
Apple iMovie 05 — Available only to those with a Mac/Apple.
HyperEngine AV — This is touted as a good alternative to iMovie if you don’t have iMovie. Apparently there are no tracks at all when using this program. Different but very, very intuitive.

And more. Someone else has already put together a list of free / shareware / trial video editors by operating system with comments so that I don’t have to bore you about it here. Check it out if you wish to use it.

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