Best Business Of Best Tally Contest

Earlier this week, I had the privilege of having Kara Tobey uncovering my classroom.  She's a first-year math instructor inwards Little Rock, AR, together with she's got an awesome weblog that y'all should definitely banking concern check out: Algeotrigcal.  I peculiarly honey the questions tab she has on her weblog where she writes almost questions she is pondering inwards regards to her teaching.

I took payoff of having about other adult inwards the classroom, together with I roped Kara into helping approximate a rival betwixt my students.  We're finishing upward our concluding unit of measurement inwards Algebra 1 that is all almost information analysis.  Specifically, we've been working amongst scatter plots for the concluding calendar week or together with thus of class.  Before taking a quiz over writing a occupation of best fit, I decided nosotros should produce ane concluding review problem.

I spent belike 5 minutes searching google images for an appropriate scatter plot.  Eventually, I realized it would belike endure faster to simply brand my ain inwards Desmos.  Yeah.  I should accept idea of that inwards the commencement place!

Eventually, I came upward amongst this scatter plot:

Side note: Projector Mode inwards Desmos is AWESOME.  

I ready a timer for 5 minutes together with had each grouping of students come upward up amongst their ain occupation of best fit.  

Last period, the 4 groups came upward amongst these 4 lines of best fit: 

The grouping that made the light-green occupation of best agree idea that they were supposed to brand their ain scatter plot together with come upward up amongst their ain occupation of best fit.  They didn't realize they were supposed to role the scatter plot that was displayed on the SMARTBoard. 

This tells me that inwards the future, I should impress a re-create of the scatter plot for each grouping together with house it inwards a dry erase pocket to avoid confusion.   

Each grouping presented their equation ane at a time.  I graphed each equation inwards the same Desmos file, together with equally a class, nosotros decided if the occupation would learn an A, B, or Not Yet on a quiz.  A lot of cracking questions arose equally a number of looking at the other group's graphs.  The resulting give-and-take made this a whole lot to a greater extent than useful than simply a unmarried practise problem.  

When I announced that the grouping amongst the best occupation of best agree would win about earth-shaped stickers, the kids groaned because it wasn't candy.  Of course, these are the same kids who were after trying to speak the winning grouping into giving them their stickers...  Thank y'all together with thus much, Kara, for jumping inwards together with judging the occupation of best agree rival together with thus I didn't accept to endure the bad guy.  ;)  

Here's a link to my Desmos file inwards instance y'all mightiness uncovering it useful.  :)  

   

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