Wednesday, March 29, 2006

Some more Geometry Questions

Question 1

Aldrin and Squeeky are arguing about the following rectangle. Aldrin says that all four pieces are equal and Squeeky say that they are not equal. Who is right? How did you find your answer?

Leave your answer in your growing post or as a comment.

Question 2


If you fold a square paper vertically, the new rectangle has a perimeter of 39 cm. What is the area of the original square?
What is the perimeter of the original square?
What is the area of the resulting rectangle?
Make a ratio of areas and perimeters. What do you notice?

Leave your answers in your growing post or as a comment

Question 3


Tom Terrific has a garden in the shape of a rectangle. He wanted to plant a tree in a specific spot. He wanted it to be in the exact center of the garden. What would be a way that he could find the center without using any measurement?


Leave your answers in your growing post or as a comment
Harbeck




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Saturday, March 25, 2006

Some Geometry Questions

Question 1
Leave your answers behind as comments. Thank You.

Question 2




Leave your answers behind as comments. Thank You.

Question 3
Estimate the area of the trapazoid given the square unit shown below. Explain how you determined your estimate. You can leave your answer in a comment or copy the picture to paint and post your responce to your Growing Post. If you do not have a Growing Post you can email pictures to me at charbeck@wsd1.org.




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Thursday, March 23, 2006

Please answer Questions




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Wednesday, March 08, 2006

More Money Problems

1. Seymore has just gotten a new job. On his first day, the boss gave him 2 choices for his salary. First Choice: Start at $30,000 and get a 5% raise at the end of every year. Second Choice: Start at $23,000 and get a $5000 raise at the end of each year. Calculate how much Seymore would be making at the start of the 5th year. Which is the better choice? Explain how you got your answer.


If You Like Legos

2. Jody, Amy, and Tim are building a model out of Legos. The top level is a 1 by 2 rectangle. The level directly underneath is a 2 by 3 rectangle. The level underneath is a 3 by 4 rectangle. How many Legos will they need if their building is to be 12 levels high? Make a chart to show your work.




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A little algebra fun.

Farmer John

John is a farmer. He has not had much luck this season. He planted 65 seeds. He watched the plants grow each week. He noticed in the first week eight plants grew. In the second week, eleven plants grew. The third week fourteen plants grew.

a. Based on the pattern the plants have been growing, how many plants will grow in week 4, week 5,week 6? Show all your work.


b. What percent of Farmer John's seeds sprouted by the sixth week? Show your work.

c. How many plants will have grown in the nth week? Show your work and explain your reasoning.

This question will take a lot of explaining. If the comment box is not large enough for you to solve it you can create a post at your class blogsite and title it FARMER JOHN SOLUTIONS.

Mr. H




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Sunday, March 05, 2006

Taking a trip?




The Math Team in Addville traveled to Subtractville for a math competition. The bus averaged 40 mph from Addville to Subtractville but averaged 60 mph during the return trip. What was the average speed of the bus for the entire trip?


Thanks to the Elementary Brain Teaser

Good luck

Mr. H




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Thursday, March 02, 2006

Find the Middle Number


It the consecutive odd counting numbers are arranged as shown above, what will be the middle (centre number) in the 13 row?

Tell me all of the steps you took in solving this puzzle. Is there a short cut?? Let the comments flow!

Harbeck

Thanks to U Mass Elementary Brain teaser




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Wednesday, March 01, 2006

Does Mathematics Rule??

If the letters MATHEMATICSRULES endlessly repeats, what would be the 500th letter?


How many different ways are there to find the answer?


Mr. Harbeck




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Your first algebra question

First of all we have to find my friends Alice and Bill, who live in two different houses on Algebra Avenue. Each of the houses on Algebra Avenue is numbered with a two-digit number from 10 to 99. I can't remember where Alice and Bill live, but I remember that their house numbers are the reverse of each other (in the sense that "21" is the reverse of "12".) I also remember that the sum of their two house numbers is a perfect square. The difference between their two house numbers is also a perfect square. Alice lives in the house with the smaller house number. What is the number of Bill's house?



This can be solved using Algebra. Guessing and checking is also a possibliltiy. Good luck. Leave the answer in the comment box.

Mr. H




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