Descartes' Rule of Signs

My little guy is four years old. He saw me working on my latest doodle notebook page and wanted to help. I think I have a budding mathematician in the house.

That being said, here is a nifty little page that allows you to count and discuss sign changes for f(x) and f(-x). It even has a spot allocated for the  number imaginary numbers if you want to go down that road.

You can find this resource at

https://www.teacherspayteachers.com/Product/Possible-Rational-Zero-Theorem-3779489

Solving Rational Equations

Why are fractions so scary? And then we throw in variables and later factoring and it throws the secondary student for a loop. Today I started with the basics. Method #1: Get a common denominator, simplify, use cross products and solve for x.
Method #2: Find the common denominator for every term in the equation, multiply both sides by that common denominator, distribute and cancel common factors, and solve for x.

What method do you like best?

Geometric Sequences and Series Doodle Journal

I tried these with my Secondary Mathematics III class today and they loved it! They followed along solving the equations and story problems with me. Then they put them in their journals for later us.

This source can be found at https://www.teacherspayteachers.com/Product/Geometric-Sequences-and-Series-Doodle-Notes-3753304.

I'm a believer!

Trying Something New!

Do you ever start on a new project and find that it leads you down a bigger road then you ever expected? Well, that just happened to me.

I have used math journals in my high school math classroom for almost 20 years. While the input varies year by year, it really has been pretty consistent. Because of that fact, I decided to digitize the entries and have them ready for my students...kind-of a hybrid scaffolded note and graphic organizer. My favorite style is doodle notes!

As I created one page, I couldn't wait to create another. I'm an addict. You can find my newest projects at: 

https://www.teacherspayteachers.com/Store/Algebrasaurus. 

I can't wait to see where this journey takes me!