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TEST PREP
Check out this site for practicing all parts of the curriculum. Scroll down to the content strands.
Posted in Classwork
Get the Math
Get the Math: Take the Challenge
http://www.thirteen.org/getthemath/
Watch videos of young professionals in the fashion, videogame, and music industries as they introduce four teenagers to their emerging businesses, studios — and algebra challenges.
Fashion designer Chloe, who won season two of “Project Runway,” asks the four teens to use proportional reasoning — and a sense of style — to take apart a poly charmeuse top, reenvisioning the sample shirt in a way that trims $5 off the cost of its fabrics.
A developer of online games for Facebook and other websites, Julia tasks the teens with programming a version of “Asteroids” by drawing on coordinate graphing and linear equations.
DobleFlo hiphop artists Manny Dominguez and Luis Lopez challenge the foursome to adjust the tempo of an instrumental sample to synch it up to a drum track, which requires calculating beats per minute.
Compiled and edited in the style of realityTV game shows, these clips stop to let you try the math using the interactive tools provided; then resume to show how the four adolescents creatively applied algebra in these contemporary fields of art and design.
For this program of WNET’s THIRTEEN, DobleFlo recorded the original rap “Get the Math.” Download a free mp3 of the song here:
http://www.thirteen.org/getthemath/files/2010/10/getthemaththeme.mp3
Get the Math is distributed by American Public Television with support from The Moody’s Foundation.
Posted in Classwork
Thanksgiving Math
458: HAPPY THANKSGIVING
Grandmother Brown is going to host a huge family gathering on Thanksgiving Day. She has eight grandchildren, and this year she has decided that they will all help with serving or cleaning up. The kitchen is small, so she must select four of the children to wash dishes after the meal. The others will help with serving during the meal.
The selection is not an easy matter, however, for there are jealousies and attachments among the children that prevent a free choice of four dishwashers. Can you help Grandmother select a dishwashing crew of four while satisfying all these whims?
 Travis will work with anybody.
 Michael won’t wash dishes unless Vinolia helps too.
 Vinolia won’t work with Jen.
 Nicholas won’t work without Funmi.
 Jen will work with anybody.
 Clark won’t wash dishes with Nicholas unless Stephen helps too, and won’t work with Vinolia unless Nicholas also helps.
 Stephen won’t work with both Michael and Vinolia, and won’t wash dishes with either Travis or Jen.
 Funmi won’t help unless either Michael or Clark wash dishes, and won’t work with Vinolia unless Stephen works too, and won’t work with both Travis and Jen.
Please state the names of the four grandchildren who will be washing the dishes, and give a full explanation of how you made your selection.
2780: THANKSGIVING TRAVEL
Zach is planning to drive to his parents’ house in Philadelphia for Thanksgiving. He lives in Pittsburgh so he can either take Route 30, which is a scenic drive, or take the Pennsylvania Turnpike. He’s trying to decide between the two routes. Here are the details that he’s considering:
Pennsylvania Turnpike:
– distance is 305 miles each way
– toll road charge is $9.00 each way
– 1/61 of the trip is city driving and 60/61 is highway driving
Route 30:
– distance is 372 miles each way
– no tolls
– 1/3 of the trip is city driving and 2/3 is highway driving
Gas costs on the average $1.60 per gallon. Zach’s car gets 25 miles per gallon in the city and 30 miles per gallon on the highway. (Route 30 involves more city driving because he’d be driving through a lot of small towns.)
Explain which plan is the most economical (not considering the time involved or the wear and tear on his car).
Posted in Classwork
Meet the Parents Night
Meet the Parents Night
Wed. October 27, 2010 7:00 pm

Updates from the Math and ELA Departments

Student, teacher and parent GOALS

Report card preview
Posted in Classwork
Let’s keep things in PROPORTION
Posted in Classwork
Properties
Posted in Classwork
Welcome to the 20102011 School year.
Welcome to the new school year.
Parents: Let’s start the year communicating. Please send an email introduction to mr.hoffner@gmail.com
Please read the rules of the class.
Remember to tell me the name and class of your son or daughter.
Math Puzzles
Check out the puzzles.
http://www.seed.slb.com/science_sectionlanding.aspx?id=26534
Here’s just one example.
Remove three toothpicks from the arrangement below to leave exactly three squares.
Posted in Classwork, Homework, Just Do the Math, Links, Projects
29,482 Cans of Food!!!
Congratulations IS 141
29,482 cans of food will feed a lot of people. We should be very proud.
Posted in Classwork
Congratulations Najma
Congratulations Najma, Class 6H3
Najma is the first student to have her answer to the Problem of the Week published on the Drexel University website. They pick the best solutions from schools all over the country.
Posted in Classwork
Here come the fractions, here come the fractions!!!!
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Family Math Challenge
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Ratio, proportion and rate Test on Wednesday.
Study lessons on ratio, proportion and rate. See the Lessons page and go over lessons 3, 4 and 5
Posted in Classwork, Just Do the Math
Ratios and Proportions!!!
Posted in Classwork, Just Do the Math
Order of Operations Test
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Here comes the quiz, here comes the quiz.
Properties quiz coming up. Remember COAGDMAS
Posted in Classwork
Welcome Students and Parents
Welcome students and parents to IS 141 and the school year 20092010. It’s going to be an exciting year. We will use this site for many things during the year. This is where homework is posted and special assignments are explained. It’s also a source of reference and a place to find test prep material. I encourage comments and questions, and try to respond in a timely fashion.
Please look around the site and leave comments or questions.
Thank you,
Mr. Hoffner
I
Posted in Uncategorized
Signed Numbers
Posted in Uncategorized
Have Fun With The Illusions
11 ships or 3 ships and 8 arches?
Can You Find 7 Horses in This Picture?
Posted in Uncategorized
2009 Math Puzzle
Use the digits in the year 2009 and the operations +, – ,x, divide, and ^ (raised to a power), sqrt (square root) and ! (factorial), along with grouping symbols, to write expressions for the counting numbers 1100. You can use decimal points and doubledigit numbers.
1. All four digits must be used in the expression.
2. Only the digits 2, 0, 0, 9 may be used.
3. Multidigit numbers such as 20, 209, oor .02 MAY be used.
4. Submit answer without using equal signs.
Example for number 11:
Correct format: (2 + 0)0+9
Incorrect format: 2+0=20=2+9=11
Got to the link below to read official rules.
Read Rules, get submission worksheets, find where to submit
Posted in Just Do the Math, Problem of the Week, Projects
Check Out Memory Lane
Check out Memory Lane
New Video Page
Check out new Video Math page!
Presidential Quotes
Posted in Uncategorized
Problems of the Week
1. The individual problem you were assigned is due to be submitted by Friday November 7.
2. The PoW “Counting Llamas….. ” (current PoW) is due to be submitted by Monday November 10.
Posted in Problem of the Week
Halloween Problem of the Week
Math Forum – Problem of the Week
4556: Pumpkin Carving for Charity*

Posted in Just Do the Math
PoW
Go to the PoW at MathForum
I notice…….
I wonder…….. Current Problem of the Week 10/20/08
Measuring Melons
Jerson is selling fruit at the Farmers’ Market. To attract customers to his booth, he has made up a contest! He has these photos of combinations of fruit on display. His contest is to find out how much each fruit weighs.
8.25 lbs.
9.5 lbs.
11.5 lbs.Note: Assume that both of the melons weigh the same, both of the pineapples weigh the same, and both of the limes weigh the same.
Melanie looks at his photos and tells him, “I know how much one melon weighs.”
How might Melanie have figured out how much one melon weighs? How much does each type of fruit weigh?
Posted in Just Do the Math
Ratio, Proportion and Rate Test
There will be a math test next week. Ratio, proportion and rate are the topics. Study PowerPoint lessons 3,4,5.
Posted in Classwork