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Latest Activity: Nov 4, 2015

Discussion Forum

End of term projects

Started by Sean Karsten. Last reply by Carrie Miller Jan 5, 2010. 1 Reply

A Function Not a Function

Started by Sean Karsten. Last reply by Lori Gilbertson Dec 8, 2009. 8 Replies

Exponential Function activities

Started by Sean Karsten. Last reply by Lori Gilbertson Dec 8, 2009. 3 Replies

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Comment by Sean Karsten on February 17, 2010 at 7:21pm
I just wanted to say that I used the Brimley activity and video about the black-footed ferrets and it went well. We'd been looking at linear, quadratic, and exponential tables for a few days so the students were able to do the work easily.

I did not go into depth about the biology aspect of the changing populations and also forgot about the fact that quadratic regression would always be 1 with 3 points. Though I caught myself partway through the activity.
Comment by Sean Karsten on February 3, 2010 at 7:36pm
The online or 'open source' book I spoke of can be found at and was listed by Arthur Weiss in the lesson exchange discussion thread.
Comment by Ronald Petts on February 3, 2010 at 11:20am
If the state is going to have a state test then I think they need to have a statewide textbook. Buying books in bulk may save money as well.
Comment by Marianna Ripple on February 3, 2010 at 10:06am
Is it an online algebra book? You know with all of the budget cuts, imagine what a savings it would be if you didn't need to purchase as many textbooks!
I think it is a great deal of pressure to have a state test/cut score to worry about...I wonder what the standard is for other courses.
Comment by Sean Karsten on February 3, 2010 at 7:01am
How many of you high school teachers know if the other subject areas at your school are using the state tests and setting a cut-score of 70%? I've found I'm the only one doing both at my school.
Comment by Sean Karsten on November 11, 2009 at 7:23pm
Please check out some of the site-wide discussions. Some interesting discussions are happening and one of our members is in the process of creating an online textbook for everyone to use. If you've already been reading some posts, I'd love to see some group members start responding or starting their own discussions or even blogs. You all have great things to share, I'm sure of it.
Comment by Joyel Hyvarinen on October 26, 2009 at 8:29am
Chris - sure, no problem. When I'm close to doing one of the activities I'll let you know.

Comment by Christine Ball on October 23, 2009 at 2:52pm
Are you up for visitors sometime. I would like to come and see one of your activities for quadratic functions.
Comment by Rachel Byma on October 23, 2009 at 2:47pm
Same to Marcia, the wait time is huge and can be uncomfortable to both the teachers and the students!
Comment by Marcia Dettloff on October 21, 2009 at 1:27pm
...........Practicing my wait time...............
Anybody get a chance to read the article "A Function or Not a Function"?......Yes wait time........
I'm not done reading.... but I like the down to basics-
Conceptual understanding-making connections between multiple representations
1) Verbally-" For each input there is one and only one output value"
(and the 1-10 determine whether relationships are functions & why/whynot?)

2) Graphically- Vertical line test
3) Numerical-
4) Analytical-

and I am going to be sharing my summary with our 7th and 6th grader teachers!!

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