Tag Archives: Exponential Functions

InCA Assignments for Week of 3/23

Update (3/17): Here are my answers to the Unit 5 Review posted below. A video of my solution to question 12, about the spread of COVID-19 in Tompkins County, can be found here. I suggest you all take a look at this video, then look at the Desmos graph I made here.

Especially, take a look at the “all dates” models. In the video, I talk about the difference between an exponential and a “logistic” model, and how we can use the logistic model to predict where the number of cases in Tompkins County will “level off” at.

Our first week of review will be about the current unit (exponential functions) and our first task is a revisit to the process of calculating taxes. Since I have a bit of unexpected flexibility to my time, I finished my taxes last week, but I’d like you to check my work! Complete this Google Form to let me know whether I did it right!  Refer to your notes and/or the things I posted when we did this together. Note that all numbers entered in the form should be purely numerical (no extra characters like a comma or $ or % sign!).

Your second task is to work on this review of Unit 5 so far. If you have access to a printer, please print and complete these sheets. Otherwise, write out your answers/sketches on a separate piece of paper. Take some pictures of you work and send them to me (bkirk@icsd.k12.ny.us) by 2:00 pm on Friday, March 27. I want to see your results, but of course this won’t be for a grade.

If you have questions about these tasks or anything else, post them here or send me an email. On Wednesday, 3/25 at 2:00 pm, I will host a virtual office hour using Google Meet. I’ll post the link here and send it out by email when that goes live. Come by and say hello, ask some questions, or just chat. I look forward to seeing you!

From my previous update post

Since our course does not end in a standardized exam, we have a lot more flexibility in how we adjust to this closure. Per the district’s recommendations, I will not be  attempting any new instruction until at least Spring Break. Our plan will be to review some of the content from throughout the year, including the exponential functions from the current unit, as well as rational expressions, rational exponents, and complex numbers from previous units; things I know many of you had some difficulty with.

I recommend you log in to IXL (see this page for log-in instructions), and work on any of the starred modules, but especially the following (click these links after logging in, or search for the three-character code in the search bar at the top):

InCA Assignment for 3/13

Continuing with the unit on exponential functions, today we spent some time working on creating functions that model other real world scenarios.

Today’s links

Cumulative IXL Modules

Don’t forget, the log-in procedure for IXL has changed. See this post for updated instructions.

InCA Assignment for 2/26

We debriefed our M&Ms activity, then formalized our notation and vocabulary a bit about exponential functions.

Today’s links



Cumulative IXL Modules

Don’t forget, the log-in procedure for IXL has changed. See this post for updated instructions.