9/29/14 BIOLOGY MRS. TURGEON

“Do not let what you cannot do interfere with what you can do.” –John Wooden

OBJECTIVES SWBAT:

1.Describe 4 roles in a learning group

DO NOW:

1. Name the 4 characteristics of life

9/29/14 BIOLOGY MRS. TURGEON

Due Date Summary:

1.Check grade book and vonsteuben.org for any missing assignments

2.Study for a quiz TOMORROW on the new learning roles for class

Let’s Move Seats!

Stay in your current seat while I go around the room and point to seats. AFTER I am finished, we will all get up and move to our new seats

New Learning Roles!

1. While you are working in groups, everyone’s papers must touch each other’s papers

2. At the end of class, I will collect one student’s paper from each group to grade. It might be your paper!

New Learning Roles!

1. Make sure you annotate the readings

2. You have 15 minutes to finish model 1 and then you STOP! (listen for the timer to go off)

New Learning Roles!

1. You have 10 minutes to finish model 2 and then you STOP! (listen for the timer to go off)

Biology 9/17/13 Mrs. Turgeon

Agenda for microscope lab1.Put 2 names on your answer sheet: yours and your lab partner’s

2.One student should start reading the front of the instructions sheet (don’t write on the instructions sheet) while the other student starts to make the wet mount slide. Bring your half sheet with instructions on how to prepare a wet mount

3.This lab is due at the end of the period. Use your time wisely.

Biology 9/18/13 Mrs. Turgeon

“Do what others won’t to achieve what others don’t” – anonymous

DO NOW: In your notes, answer: “What is the name of the microscope part that determines how much light will reach the specimen?”

Biology 9/18/13 Mrs. Turgeon

Agenda

1.Review the microscope

2.Complete the Characteristics of Life Lab

Always carry a microscope with one hand holding the arm and one hand under the base.

What’s my power?

• To calculate the power of magnification, multiply the power of the ocular lens by the power of the objective.

What are the powers of magnification for each of the objectives we have on the microscope featured

here?

Comparing Powers of Magnification

We can see better details with higher the powers of magnification, but we cannot see as much of the image.

Which of these images would be viewed at a

higher power of magnification?

Things you can see with a Microscope!!!

• Pond Water Video

• Euglena

Let’s give it a try ...1 – Turn on the microscope and then rotate the nosepiece to click the red-banded objective into place.

2 – Place a slide on the stage and secure it using the stage clips. Use the coarse adjustment knob (large knob) to get the image into view and then use the fine adjustment knob (small knob) to make it clearer.

4 – When you are done, turn off the microscope and put up the slides you used.

3 – Once you have the image in view, rotate the nosepiece to view it under different powers. Draw what you see on your worksheet!

Be careful with the largest objective! Sometimes there is not enough room and you will not be able to use it!

How to make a wet-mount slide …

1 – Get a clean slide and coverslip from your teacher.

2 – Place ONE drop of water in the middle of the slide. Don’t use too much or the water will run off the edge and make a mess!

3 – Place the edge of the cover slip on one side of the water drop.

You do not need to use the stage clips when viewing wet-mount slides!

5 – Place the slide on the stage and view it first with the red-banded objective. Once you see the image, you can rotate the nosepiece to view the slide with the different objectives.

4 - Slowly lower the cover slip on top of the drop.

Cover Slip

Lower slowly