Wednesday, May 18, 2011




PreAlgebra II: The Mine Shaft

The Warm Up:
Formulas You Need To Know:
Volume of a Rectangular Prism:  V = l*w*h    or  Volume = Length times Width times Height

Find the volume of the following rectangular prism:

Volume of a Cylinder:
V= πr^2h     or      Volume = Pi times r squared times Height
Find the volume of the following cylinder:

Previewing the Problem:
Read GS 128:

Some Background:

Apps You May Consider:
iFormulas:  LINK!!!
Geometry Calculator:  LINK!!!

Websites You May Consider:
Volume of a Cylinder
Calculating Volume of a Cylinder
Volume of a Rectangular Prism

Complete the Problem:
Review problem again above or read it in your book.

1.  Recreate a picture of the mine shaft in your notes.
2.  Create two sections that describe work for finding the volume of the cylinder and the rectangular prism.
3.  Using the information from #2 or letter a in the problem, how many cubic feet of concrete will be needed to build thee platform?

1.  If concrete weighs 120 pounds per cubic foot, how much will the platform weigh?  Show work.
2.  If a donkey can haul 350 pounds of concrete, how many cart loads will be needed?

Complete This Survey 

Wednesday, May 11, 2011

PreAlgebra II: Pythagorean Theorem

The Pythagorean Theorem and Ladders

You're locked out of your house and the only open window is on the second floor, 25 feet above the ground. You need to borrow a ladder from one of your neighbors. There's a bush along the edge of the house, so you'll have to place the ladder 10 feet from the house. What length of ladder do you need to reach the window?

A carpenter wants to build a handicap ramp over a set of steps that is 12 feet long and 5 feet high. How long will the ramp be?

The Pythagorean Theorem and Baseball

You've just picked up a ground ball at first base, and you see the other team's player running towards third base. How far do you have to throw the ball to get it from first base to third base, and throw the runner out?

ALGEBRA: 9.3.3 Resource Sheet

Photo Credit: HERE
The country situations are found on the link below.


Tuesday, May 10, 2011

ALGEBRA: 9-68 to 9-69


The direction of the class is stated in the video below...



Click on the video below to follow along with today's instructions. EVERY NOTE and EXAMPLE should be in your notebook!