Jan2-6

=Monday - Teacher Work Day= =Tuesday - It's All Downhill - Slope Project= Standard 3.4.1 - The student… 1. uses the coordinate plane to (2.4.K1a): a. ▲ list several ordered pairs on the graph of a line and find the slope of the line; b. ▲ recognize that ordered pairs that lie on the graph of an equation are solutions to that equation; c. ▲ recognize that points that do not lie on the graph of an equation are not solutions to that equation; d. ▲ determine the length of a side of a figure drawn on a coordinate plane with vertices having the same x- or y-coordinates.


 * The steepness, or slope, of a hill can be described by a ratio.**


 * slope = __vertical change (height)__**
 * horizontal change (length**


 * **Gather supplies**
 * Poster board or wood board
 * tape
 * books
 * toy car
 * yardstick
 * **Collect the data using the following document.[[file:All Downhill Document.doc]]**
 * Use the board and some pre-algebra books to make a "hill". (See page 386 in book for illustration.)
 * Hill #1 - One book
 * Measure the height y and length x of the hill to the nearest 1/2 inch.
 * Place the car at the top of the hill and let it roll down. Measure the distance from the bottom of the ramp to the back of the car when it stops. Record the distance in the table.
 * Create a new hill with 2 books and repeat process.
 * Create a total of 6 hills by adding one more book each time. Repeat the process for each new hill.
 * **Find the slope of each hill.**
 * Divide y by x.
 * Record the data in your chart.
 * **Analyze the Data**
 * Answer the questions on the document where you recorded your results.
 * Extension
 * Make another hill with other books available.
 * Find its slope.
 * Predict the distance the car will go when it rolls down the hill.
 * Test your prediction by rolling a car down the hill.

=Wednesday/Thursday - Slope= Standard 3.4.1 - The student… 1. uses the coordinate plane to (2.4.K1a): a. ▲ list several ordered pairs on the graph of a line and find the slope of the line; b. ▲ recognize that ordered pairs that lie on the graph of an equation are solutions to that equation; c. ▲ recognize that points that do not lie on the graph of an equation are not solutions to that equation; d. ▲ determine the length of a side of a figure drawn on a coordinate plane with vertices having the same x- or y-coordinates.

What You'll Do: =Friday - Slope - Lines=
 * Complete Partner Work from class.
 * Resources:
 * *** [[image:http://static.mathworksheetsgo.com/images/youtube_video-icon_small.gif align="absmiddle"]][|Video Tutorial] (You Tube Style) on[| how to calculate slope].
 * [|How to find slope from Graph]
 * [[image:http://www.mathwarehouse.com/images/icons/calculator-icon.png align="middle"]][|Slope Calculator]
 * [|Interactive Slope] Explore the formula of slope by clicking and dragging two points.
 * [|Pictures of slope of a line](formula, graphs etc..)
 * Discuss Slope - Rise/Run
 * Practice finding slope using Rise/Run
 * Discuss [|Slope] - If you know 2 points - using website.
 * Practice Finding Slope.
 * Practice finding slope using 2 points.
 * [|Graphing Practice on-line].
 * Discuss how to graph a line when you know the slope and y-intercept.
 * [|Discuss graphing lines].
 * Practice graphing lines.