by Jon Stern
New Paltz Central School
Express ratios as fractions in simplest form.
Determine unit ratio.
Determine if a pair of ratios forms a proportion.
Solve problems using proportions.
“C” Level Work (75 points maximum)
(underlined assignments are mandatory)
(*check the rubrics for this activity)
Complete notes for each lesson: *
1_____ Ratio (5 points)
2_____ Unit Rates (5 points)
3_____ Proportion (5 points)
4_____ Flash Cards: (10 points)* create flash cards using the following words- ratio, rate, unit rate, greatest common factor, proportion, cross product, numerator, denominator
5_____ Book Work: (10 points)* read Ratios and Rates on Pp. 338-339 of Glencoe’s Applications and Connections-Course 3 and complete 10 problems on Pp. 340-343 (must include at least 2 Problem Solving and Applications problems).
6_____ Book Work: (10 points)* read Proportions on Pp. 344-345 of Glencoe’s Applications and Connections-Course 3 and complete 10 problems on P. 346 (must include at least 2 Problem Solving and Applications problems).
7_____ Book Work: (10 points)* read Using Proportions on Pp. 347-348 of Glencoe’s Applications and Connections-Course 3 and complete 10 problems on Pp. 349-350 (must include at least 2 Problem Solving and Applications problems).
8_____ Video: The Zany World of Basic Math: Ratios and Percent (5 points) watch the video and complete the accompanying worksheet. The video can be accessed online at www.unitedstreaming.com or by following the link on the course web site. Type in the username _______________and password _______________ and search for Ratios and Percent.
9_____ Build a Pyramid: (10 points) Construct a model of one of the pyramids of Egypt using the scale 1cm = 30m. Be sure to write down your calculations. Directions for building the model can be found at http://www.jaconline.com.au/ atlasofdiscovery/downloads/worksheets/ws49-pyramid.pdf.
10_____ Use a pantograph: (5 points) copy a drawing with a pantograph. Measure the two drawings and calculate the ratio being used. You can do this online at www.ies.co.jp/math/java/geo/panta/panta.html. Be sure to print the drawings.
11_____ Web Activity: (10 points) go to http://www.aaamath.com/, click on Ratios then click on both Ratios and Determining Ratios. Complete both activities and print the final page for both.
12_____ Web Activity: (10 points) go to http://www.math.com/, click on Everyday Math then click on Proportions. Complete both the activity and the unit quiz. Print the final page for both.
13_____ Performance Stations: (10 points each) go to one of the hands-on stations (described at http://mathcentral.uregina.ca/rr/ database/rr.09.97/gauthier35.html) and follow the directions. You may do up to 3 of the stations.
14_____ Baking Proportions: (10 points) use a home recipe to make cookies for the entire class. Use proportions to rewrite the recipe for the number of servings you will need. Be sure to have both the original and new recipes along with your calculations. Enjoy!
“B” Level Work (15 points maximum)*
15_____ Lab: Airplane Glide Ratio (15 points)
“A” Level Work (10 points maximum)*
16_____ Which form of art requires a greater understanding of proportions? (10 points)
17_____ Why has the Golden Ratio been so important throughout human history? (10 points)
18_____ Is the use of ratios, proportions, or percent more effective when advertising products? (10 points)