## Thought-Provoking Proportion Challenge Problems

I totally meant to share these problems a few weeks ago, but I wanted to try it out with my classes first.  However, I got so distracted with doing my Capture & Recapture Lab that we never got to the worksheet.  Yes, I did a Capture & Recapture lab for my Beginning Algebra Classes to help demonstrate how proportions might be used as part of a method of estimation.  Several students told me that without the lab, they wouldn't have really understood exactly why we even needed proportions.  That made me happy.  So, here we are after the semester has already ended and I never used these problems.  But I thought that I would share them anyway. Proportion.pdf Download this file ...

## New Slope Game

I hope you enjoy this game!  I would love to have any feedback if you decide to use it. Slope game Other Slope Resources Applets 1.  Interactive Slope Applet - Although I ran out of time to actually use this with my own class, this is a wonderful resource that lets students click and drag points such that when the line between the point changes, the calculation of the slope of the line also changes on the screen as well.  Very useful! 2.  Slope-Intercept Equation Applet - This appears to be the exact same applet I introduced to you a few weeks ago in the Geogebra Tutorial video.  It's a very simple resource that allows students to visualize the slope-intercept equation of a line by using sliders to change the slope and y-intercept. Worksheets 1.  Pete Falzone's Understanding Slope and Y-Intercepts 1 2.  Pete Falzone's Understanding Slope and Y-Intercepts 3 3.  Pete Falzone's Graphing and Using Slope and Y-Intercepts 1...

## New Activity for Prime Polynomials

This is what I am going to use with my Beginning Algebra students to reinforce the idea of prime polynomials.  The majority of the polynomials are prime. Prime Mania...

## Factoring the Difference of Two Perfect Squares

These videos are on Section 6.5.  Please watch the videos over the weekend and come prepared with the completed handout on Monday.  We will have further discussion in class. View on screencast.com » View on screencast.com » ...

## Percent Increase and Decrease

Here's a sample lesson on Percent Increase and Decrease designed for a 52-minute Pre-Algebra class. 1.  Start by watching the video on 'Percent Increase'.  Make sure that students have the handout so that they don't have to write down the application problem. 2.  Have students work on the two 'Group Work' problems on percent increase. 3.  Follow the same process for 'Percent Decrease'. 4.  Have the students do the Percent Increase and Decrease 'Matching Activity'.  You need to have the tiles cut apart for them already.  If there is not enough time to complete this in class (There usually isn't), suggest that the students take the activity home.  If you wish, have the students bring the completed matches back to the next class for credit.     View on screencast.com »     View on screencast.com » Percent Lesson...

## This Calculus Game Needs a Sweet Name… Any Suggestions?

I just finished this new Calculus game in anticipation of teaching a lesson on The First Fundamental Theorem of Calculus.  I'm looking to give it a good name.  Any suggestions? Calculus Game.pdf Download this file Jing Video and notes to accompany my lesson: View on screencast.com » Intergal_Video.pdf Download this file Jing Video and notes for the Second Fundamental Theorem of Calculus: View on screencast.com » The_Second_Fundamental_Theorem_of_Calculus.pdf Download this file Group_Work_Problems.pdf Download this file ...

## Solving a System of Equations with Two Unknowns

A Sample Lesson on Solving a System of Equations with Two Unknowns Before you begin, you may want to print the summary sheet below for reference.  The sheet happens to have a major typo, but I think that it's usually fun for the students to discover it themselves. I've been generous enough to correct the typo. SYSTEMS OF EQUATIONS Start out by watching this introductory video about solving an application problem using the addition method.  I recommend printing out the handout of what is covered in the video so that you can take notes as you follow along. View on screencast.com » VIDEO NOTES Go to Wolfram|Alpha and make sure that you know how to enter systems of equations there so that you can check your answer using this wonderful tool whenever you are at a computer.  Or even on the go, if you have a smartphone. This is a link to the solution for the problem shown in the video:  http://www.wolframalpha.com/input/?i=solve+the+system+.34x+%2B+1.98y+%3D+3990%2C++.73x+%2B+2.45y+%3D+5865 Next, watch this short video on solving systems of...