Here are three new application problems that I came up with while teaching signed numbers this morning. Remember, I came up with these on the spot, during class. So, just imagine that the entire class is paying attention to each of these problems as I am writing them, trying to figure out what is going to happen next to Clyde in each of the problems. I hope you enjoy these!1. Clyde was walking down the street and he lost 1/3 of his vodka. A little later down the street Clyde encountered a zombie who wanted to steal another 2/5 of his vodka. The zombie agreed not to kill him if he told him the total loss that he incurred, as a signed number. 2. Clyde was running another scam where he collected $6.20 from people to buy an invisible potion of life. The local ghostbuster caught wind of this scam and blackmailed Clyde with a $3.30 charge. How much money does Clyde still have from this scam? 3. Clyde was in debt $12 to the local spy shop for some new night vision goggles that he needed to monitor paranormal activity coming out of the bottom of his shoes. When Clyde informed the spy shop that they forgot to include the complimentary antenna that comes with his goggles, they subtracted $4 off of his debt. How much does Clyde still owe, as a signed number?
1. Remember my calculator post from last week? Well, some of my Finite Math students were still having a little bit of trouble using the calculator to do Regression on the calculator. This website on Cubic Regression seems to have done the trick for my students, and I don’t seem to be getting nearly as many questions about how to do regression on the calculator now have I have started to circulate this link around. So, I figured I would throw it out there as a resource for everyone else!
There have been so many times when I have wanted to print something from the web, but have had a very hard time getting it to print out correctly. Joliprint is a resource that will definitely solve (most) of your problems. For example, the other day, I printed this Convert, then Compete blog post from the Chronicle of Higher Education with the intent of having my students read the article and then write a paragraph response. By the way, this turned out the be a very good activity that went along with the discussion of measurement in my Developmental Math class. However, the print ended up being small and quite awkward. Joliprint solved all of my problems, and I wish I had known about it BEFORE I printed this article for my students. If you don’t believe me, take a look at the before and after, and I think you’ll be a Joliprint fan. I know I am.
Over the past few months I have been trying to totally emerge myself into the world of Instructional Technology. I have seen so many resources and as we all know, they eventually become repetitive. I hate reading a list of "The Top Best New 100 Resources for Teachers" and half of them I already know about, and the other half end up being useless because they are either ill-designed or expensive.
In my Finite Math class I have been heavily stressing the use of the graphing calculator, especially since the college requires the calculator for the course. I would definitely show the students how to use the graphing calculator anyway, it’s just that since it’s required, I feel as if I have an extra obligation to make sure that the students are using the calculator that they spent their big bucks on. Anyway, here are a few issues that I have run into so far this semester (and unfortunately, I ran into all of the issues on the same night so it totally looked like I didn’t know what I was doing):
Issue #1: When using ‘Math Print’, the Radical Sign has a limit.
I really hope that you find this useful:http://blog.mindomo.com/2011/02/guest-post-mr-oaks-the-math-teacher.html
First of all, congratulations to Maria Andersen for winning the Mindomo MindMap of the Week. Now, let’s document my journey over the next 30 minutes or so after I started hunting around the Play and Learn Mind Map. And this is truly interesting, as it might show you exactly how I think sometimes.