Homework, Week Four (due next class)

It only looks like a lot:

pages 41-42 review of customary measurement
pages 88-91 review of geometry with special emphasis on similar triangles. I gave a class handout that I said I would be collecting on Thursday. I will collect it on Monday, at our regular class. Show all work and be prepared to do a short quiz on similar figures, i.e. similar rectangles, etc., using proportions.

Quiz Results: Pretty Good So Far!

To the three eighth-graders absent yesterday (9/29) I will hand out a replacement quiz for you to do at home and turn in next week. It shouldn't take you longer than 45 min. and you may consult your text if you need to.

Homework, Week Three

In class this week we reviewed percentages and how to find them. Your assignment is to complete all of 3.1 (we started in class) and the 3 pages of section 3.2. I had recommended doing column a only, but do check your answers and make sure you can do this. The answer key should help you out. If you are taking a while to get the hang of it, please do all. There will be a quiz on Monday on percents, ratios, and proportions.

I reviewed how to do percents as a proportion in class and I wish the book showed that technique for each of the 3 different kinds of problems you see in section 3.2.

For example, if you have to find 8% of 25 you can simply multiply .08 times 25 or

set up a proportion 8/100 = n/25.

Either way will get you the same answer. Try using the proportion method some of the time to be sure you feel comfortable with it.

Possible Pop Quiz on the Horizon

Just a warning to eighth-graders: this is the best way to be sure you are using your homework time wisely. You have a key in the back of your book to check that you know what you are doing. You have many examples in the texts and handouts. Be prepared to show what you know about ratios and proportions.

Vocabulary Words

Improper Fraction
Mixed Numeral
Reciprocal
Fraction in Simplest Form
Ratio
Proportion
Factor
Multiple
GCF (Greatest Common Factor)
LCM (Least Common Multiple)




I urge you to use your own words, giving examples to help you to remember these concepts. The more you use your own words, the surer you will be of being able to remember these! At least that's the theory! And, when we have a test, you'll be able to use your vocabulary sheets.

Handouts and Homework, Week Two

Here are the four pages I handed out in class.
They are due next class, 9/22. For the percent page, please memorize where indicated!! Plus, please look over pp. 23-24 in your book and be able to do problems like the word problems on p. 24. You might want to practice as I suspect that there will be a quick quiz on using proportions to solve word problems.
Use pencil and show your work.






KB

Mathleague.com

For those of you really into math, take a look at this site and let me know if you are interested in forming a group/team. It would be fun to compete!!

Homework, Week One

1.6: 1e,2e,3e,4e,5e
1.7: row 1
1.8: rows 1 and 2
1.9 rows 1 and 3
1.10: row 1
1.11 row 1
1.12: row 1
p. 16: probs. 6-8
2.1: rows 1-3
2.2 rows 1-3
2.3 probs 1-3

For 2.1 above, you are asked to cross-multiply to check if a proportion is true. Please do that for the exercise this time. However, I'd like you to think about the other ways we have of knowing when a proportion is true. For example, we know that a proportion such as 1/2 = 2/4 is true, even without cross-multiplying. Be ready to talk about the problems for 2.1 in which you really need to cross-multiply to check the proportion, and which ones you could test in other ways.

Writing assignment:

Define the following in your OWN WORDS and give examples:

improper fraction
mixed numeral
reciprocal
fraction in simplest form
ratio
proportion
factor
multiple
GCF (Greatest Common Factor)
LCM (Least Common Multiple)