Welcome!

Hello and welcome to the 2013-2014 school year! I'm excited to work with you this year! Please take some time to look over this site. I've left all of the posts from last school year up for you to have available during this school year. Maybe I taught a lesson better last year, so why get rid of it now!? :) If you have questions, please email me at kenneth.mach@k12northstar.org.

Thanks!
Mr. Mach

Monday, April 7, 2014

Solving Equations


Hello everyone!

I'm back to undating my blog! I can't believe it's been over a month since my last post! I've included an image of the problem from today as well as a video going over parts of the problem. I hope this helps! 


Wednesday, March 5, 2014

Area of a Trapezoid



Hello! Here is the video for the area of a Trapezoid. I will post additional examples to practice as soon as possible. There is a quiz on Friday.

Thanks!

Here are a couple of extra problems to try. The second one is a challenge problem!! 

Solutions : 81 square feet ; 109 square feet

Tuesday, March 4, 2014

Area of Complex Shapes

Hello everyone!
We shifted into a new unit! Yes, that means we are not doing any more proportions!!..... at least for a little while... mmwwahahaha! 

Here is a video going over the problem from Monday, and I've included a screen shot of the problem from today that is homework for several of you. The video will help give some ideas on how to solve the one assigned today. 

Thanks! 



Wednesday, February 19, 2014

More Scale!

Hello everyone!

We are working more with scale this week. So today, we investigated scale given the floor plan of a house. The objective was to use the floor plan and scale to get the actual dimensions of the home. The video below explains the process used. The final piece of this assignment is to find the area of the family room. That will be due Friday. The video should help.

Floor Plan 

Video

Friday, February 14, 2014

Legos and Scale!

Here are a couple of videos going over our new topic, Scale. We did a project today connecting scale with Legos. These videos should be helpful to get a general idea of how to duplicate something at a scale of 1 to 2.




Thursday, February 6, 2014

Unit Rate and Percent of Change Quiz Review

Hello everyone!

As promised, here are the movies explaining how to do the 3 questions from the Quiz Review you received either Wednesday or Thursday. I hope this helps! And I'm sorry they are so sloppy!

Tuesday, February 4, 2014

More Percent Change :: Super Bowl Style

Hey everyone! Here is the problem for today! There is also a great video of a couple of students explaining how to do the problem! I hope it helps :)

Super Problem