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September 30, 2005
Here are some interesting links for increasing your understanding of the cell cycle.
This is a Trackstar Lesson. It is track #174520.
Simply click on the sites that are listed on the left. Some sites have comments and instructions listed above.
Posted by Carroll at 12:05 PM
As we approach the end of our unit on cell organelles and cell processes, students need to begin reviewing and preparing for a test. The test is tentatively scheduled for Friday, 10/7. Wednesday the 5th is an early release day and the grading period ends on the 11th.
Friday, 9/23, students worked on their formal reports on laptops in the media center. Lab teams learned how to input their data in Excel and create a graph. Students should have collaborated on assignments for the completion of the formal lab report. See the rubric in an earlier post. The deadline was extended until Friday, Sept. 30 due to the cancellation of school on Mon. and Tues. All classes were able to work in the maclab on Thursday to finish their reports.
The science news article and summary paragraph for 9/29 was cancelled for this week. Students will need to do this ongoing assignment for next week.
Posted by Carroll at 12:04 PM
Why is cell division important?
Name and describe the events involved in the life cycle of cells.
Class Activity:
Use props to model the stages in the life cycle of a cell.
Relate the props used in the modeling activity to the actual cell parts and events that occur.
Content:
cell cycle: interphase, mitosis, cytokinesis
Skills:
simulate mitotic chromosome replication and cell division
differentiate among the various stages in the life cycle of a cell
evaluate the importance of the process of cell division
Evaluation:
Performance checklist - individual and group
Exploration questions answered.
Test/ formal assessment
Posted by Carroll at 12:03 PM
Classwork on Wednesday (9/28):
-Apply the survey (pre-reading) strategy for pages 66-70
-Read the section and answer your self-generated questions
-Complete the compare and contrast handout for photosynthesis and respiration
-Analyze and summarize the similarities and differences in these two cellular processes by writing a paragraph.
Your paragraph should be completed for homework.
Posted by Carroll at 12:02 PM
September 22, 2005
Download file
Use the document above to help you create your final report for your eggsperiment.
The formal report is due on Tuesday, Sept. 27th.
See me if you have any questions.
Posted by Carroll at 07:22 AM
September 19, 2005
Today is the last data collecting day for our "egg-speriment". Students will organize information in table form and begin analysis of the results. It is important for data to be recorded neatly and accurately in the lab journal. Your journal will be an individual lab/classwork grade- to be checked on Wednesday. Your lab team will prepare a formal report which will count as a test- due on Tuesday 9/27.
Monday we will also review and check our answers to the molecular model worksheets on organic compounds. (classwork grade)
Skills:
1. Measure and record data using appropriate tools.
2. Organize data into tables.
3. Analyze data using graphs; relate to diffusion of materials across a membrane.
4. Create graphs of data using Excell.
5. Communicate - explain results and conclusions using sentences and diagrams.
Assessments:
1. Lab journal entry for egg-speriment with a cell.
2. Formal report of the experiment (one per lab group).
Posted by Carroll at 06:44 AM
September 13, 2005
I am so pleased to have the opportunity to teach Ms. Larkin's third period AC science class. Today was our first meeting and Ms. Larkin and I are working together to assure a smooth transition for everyone. We are at the 4 1/2 week time in the term and progress reports are being prepared to go home on Friday. Ms. Larkin will print the progress reports to distribute this week and the grades will be entered and become a part of my grades this 9 weeks for each student.
Homework: You have one final item to turn in to her tomorrow- the cell city assignment.
If you have any questions, please email me.
Posted by Carroll at 12:08 PM
Page 50 in your text introduces an experiment that students will be working on during this entire week. The goal is to investigate how materials move into and out of a cell using an uncooked egg that has had the shell dissolved away as a model.
Students should measure and record data daily in their journals. Each student team should plan and bring in at least two liquids to use as soaking solution for their eggs.
More information about the formal report and due dates will follow in a later post.
Skills:
Measure and record data
Organize information in a table
Analyze and compare the effect of different liquids on the size of the egg (graph data)
Formulate an explanation for the behavior of the egg in various liquids (draw conclusions)
Demonstrate safety practices for lab situations
Cooperate and collaborate with others
Assessments:
Lab journal write up- individual
Formal report- group
Observed lab techniques in data collection and safety practices
Posted by Carroll at 12:07 PM
Classwork for Friday, Sept. 10th:
Read pages 52-55 in your text and complete the guided reading workbook pages for section 1. Create a table to compare the major chemical compounds in cells. You should include whether the compound is organic or inorganic, the elements it is made of, the job that it performs in the cell, and the foods that it is found in.
Also-Read the article that Eli found about extreme loving microbes in the AJC. Write three examples of cause and effect that are found in the article.
Remember that your cell analogies are due on Monday.
Posted by Carroll at 12:05 PM
While working on the "Egg-speriment" this week, students will be investigating the major chemicals of life using molecular models.
Monday and Tuesday student groups created molecular models of carbohydrates.
Homework - due on Thursday:
Find an interesting science news article for this week. Read and write a paragraph summary of the facts of the article. Include the MLA citation for your source on your summary.
Skills:
Assemble molecular models of carbohydrates
Analyze and compare the models, structural formulas, and molecular formulas of carbohydrates
Determine how simple sugars combine to form more complex sugars
Assessments:
Worksheet # 10
Completed models of specific molecules
Posted by Carroll at 12:01 PM
September 06, 2005
Remember that you have another article summary due this Thursday.
Students should correct their Science Test #1 for homework tonight.
This means that each missed question should be written out on notebook paper and the correct answer written out beside it- not the letter of the correct answer. The corrections will be turned in for a homework grade. If you had one or two points deducted for the experimental design diagram, then you may simply write out the missed part. If you missed 3 or more points on this part of the test, then you should redo the whole thing.
Here is a sample of what you could have written for the experimental design diagram:
Title: The effect of type of plant material on the percent of water that each contains.
Hypothesis: If the type of plant material is a fruit, then the percent of water that it contains will be greater than the percent of water found in the other plant parts.
____________________________________
IV: Type of plant material used
apples grapes strawberries potatoes carrots
1 1 1 1 1
____________________________________
DV: Percent of water in the plant material calculated using the change in mass before and after dehydration (drying)
C: equal size pieces, sliced the same way, same amount of time, same method of drying
Posted by Carroll at 08:50 PM
