Diversity of Life Investigation 2








LESSON FOR MONDAY, OCTOBER 17th, 2016


EQ: How can we use metric measurement to help us observe objects and organisms under a microscope?

Steps in this lesson:
1.) Watch the following videos in this order:
2.) Complete as much of the measuring packet below as possible. You picked this packet up from the tray by my stop sign. You may review the videos above if needed. This packet will be collected at the end of the period. Don't stress if you do not get it all done.
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Essential Questions

What are microscopes and how do they function as a scientific tool?

  • What are the parts and functions of a microscope?

  • How do we properly use a microscope?

  • What are some patterns we can recognize from viewing an object under a microscope?

  • What is the "Field of View"?


  • What is a focal plane?

  • What is optical power?

  • How can we apply microscope techniques to a living organism?



You will KNOW that….

1.) Tools are commonly used by scientists to study objects and organisms in more detail.

2.) Focal plane is the plane in the field of view where the object comes into focus.

3.) Field of view is the visible area one sees when looking through a microscope.

Microscopes have many parts with unique functions. Among them are: eyepiece, body tube, base, arm, fin adjustment, course adjustment, stage, stage clips, diaphragm, light source, revolving nose piece, objectives.

It’s important to UNDERSTAND that…

1.) Optical microscopes are a two lens system that magnifies an image. In so doing, the image is reversed and upside down.

2.) How focal planes, field of view, and slide movement interact to impact objects viewed under a microscope.

3.) Optical power or total magnification is a product of the magnification properties of both lenses in a microscope.

You will be able to….

1.) Measure the field of view of a microscope at various magnifications.

2.) Estimate and measure the size of objects placed under a microscope at different magnifications.

3.) Draw scale representations of objects viewed under a microscope at different magnifications.

4.) Calculate optical power (total magnification) of a microscope.

5.) Demonstrate proper usage of a microscope in a variety of situations.

6.) Demonstrate techniques of dry mount and wet mount slides.




Vocabulary
  • eyepiece
  • ocular lens
  • body tube
  • base
  • arm
  • fine adjustment, course adjustment
  • stage
  • stage clips
  • diaphragm
  • light source
  • revolving nosepiece
  • objectives/LENSES
  • scanning lens

MICROSCOPE TRAINING and CERTIFICATION

You must be trained and certified on the microscope before you will be allowed to use it!

Here is some help:
1.) READ and complete page 7 of your FOSS DOL lab book.
2.) Study, learn, memorize the picture on page 3 from your FOSS DOL Resource Text.
3.) Read, learn these directions: Directions for properly using a microscope.
4.) Complete any microscope worksheets you were given.
5.) Watch the following training videos.
6.) Take this practice quiz and score a 90% (9/10) or higher. MICROSCOPE PRE USAGE QUIZ
7.) Take this practice quiz until you score a 5/6 or higher. MICROSCOPE USAGE ORDER QUIZ
8.) When you have received the appropriate scores above and given me evidence that you completed your papers, you may take the real certification quiz below by yourself!

ROOM: 17e40f1c
Take the official certification quiz by typing the room number above in the space in the (link) provided.You must score an 80% or higher.


LESSON #1

EQ: What are the parts and functions of a microscope? How do we properly use a microscope? (Lab book page 7)



LESSON #2

EQ: What are some patterns we can recognize from viewing an object under a microscope? (Lab book page 9)

  • You will use utilize page 9 in you lab book to recognize what happens to an image when viewed under a microscope. You must show me each part of page 9 for inspection before moving on to the next part.
  • You may use the "Virtual Microscope" link below to simulate the "Letter 'e'" under the microscope.
    • FOSS VIRTUAL MICROSCOPE

    • 1.) Page 9 items 1, 2, & 3:
      1. a. From your letter e bag, cut out one, single letter e and make a dry mount slide of it according to these directions.
      2. b. Place the letter e on the center of a glass slide from your microscope kit. Use tweezers if you need to.
      3. c. Place a plastic cover slip on top of the slide to cover the letter e.
      4. d. Place the slide with the letter e on the microscope stage.
      5. e. Follow these directions for how to use your microscope (a hard copy of this should also be in the page protector at your table). Directions for properly using a microscope.
      6. f. Complete items 1, 2, & 3 on page 9 of your lab notebook then call me over to inspect the quality your work.
      2.) Page 9 item 4:
      1. a. From your color photo bag, make a dry mount slide by placing the photo on a glass slide and placing a cover slip on top of it.
      2. b. Place the slide with the photo on the microscope stage.
      3. c. Follow these directions for how to use your microscope (a hard copy of this should also be in the page protector at your table). Directions for properly using a microscope.
      4. d. Complete item 4 on page 9.
      3.) Page 9 item 5:
      1. a. Get a feather from the feather bag.
      2. b. Make a dry mount slide by placing the photo on a glass slide and placing a cover slip on top of it.
      3. c. Follow these directions for how to use your microscope (a hard copy of this should also be in the page protector at your table). Directions for properly using a microscope.
      4.) Page 9 item 6:
      1. a. On page 10 of the lab notebook, answer all questions from item #6.
    • VIRTUAL MICROSCOPE (U of D)



LESSON #3

EQ: What is "Field of View" and how can we use metric measurement to observe patterns as the magnification changes? (Lab book page 11)




Videos

Drill, Practice, & Enrichment**
When using FOSSweb, our user name is palmyra and PW is our mascot.


VIRTUAL MICROSCOPE (U of D)

For FossWeb Stuff, our user name is Palmyra and our PW is our Mascot

Comparison of 1 mm at different magnification

Field of view comparison sheet

Field of view practice and remediation

More field of view practice

FRAYER graphic organizers for DOL2

Magnification Graphic Organizer Sheet










! IMPORTANT !Reading Guidelines

Reading is a critical element of this FOSS program. It is very important that you read the entire assigned reading before moving on to any written homework regarding the reading. It is helpful to do the following while reading:


  • Read the title of the required reading
  • Read the end of reading questions
  • How do the bold faced words relate to the questions?
  • How do the bold faced words relate to the title of the article?
  • How does this relate to class?
  • Are you reading to get it done or to learn? (please read to learn)