Monday, January 25, 2010

Monday, January 25th

Sixth Grade

The class worked through a pretest today. Be sure you go over the questions tonight! The test is tomorrow.

Seventh Grade

Language Arts - The students each chose the person for the research paper today. We went down to the library and some found books on his/her person and checked them out. There will be 8 total sources. Only two may be websites and Wikipedia is excluded as one. 4 sources MUST be books and 2 MUST be encyclopedias. Websites aren't required, but may not exceed two. If a student choose not to use websites, then they must use 2 other sources - book or encyclopedia. A magazine article would also be acceptable. We discussed how to write notecards today and the students received a sheet explaining the notecards. 15 cards are due this Friday. Each card is worth 1 point and they will not be able to make up the points for the cards. If they do not turn them in, they lose the 15 points. For those that did not find books in the school library will need to go to the public library to find sources.

Vocabulary - Unit 10 and cards are due tomorrow!

Spelling - 1st two pages of Unit 21.

Math - Lesson 5-10. Dividing fractions. #2-46 evens.

For #2-14, you are just writing the reciprocal of the number. If it is a mixed number, first change it into an improper fraction and then flip it. If after you flip any fraction, the denominator is now a ZERO, remember, this is not possible. You would write that there is no reciprocal by writing NONE or just writing the zero with a line through it to say, "no real number".

For #18-34, you are just dividing two fractions. Remember, to divide fractions you first change the division sign to multiplication and flip the second fraction. Then, cancel where you can and multiply. Also, remember the sign rules for multiplication: if the signs are the same it's positive and if the signs are different, it's negative. Some of these problems are complex fractions. They look like this: (you can click on the picture to make it bigger)


For #38-40, you will solve the left side and then compare the fractions. Remember, you cannot compare two fractions if they do not have a common denominator. You can also cross multiply to see which is bigger.

For #44 - 46, you will plug in the number for the letters and solve from there. Here is an example using the same numbers as for #42-44:


Eighth Grade

Lesson 6-2. #2-22 and #25. ALL.

For #2-12, you are trying to figure out what is happening to "x" to get "y" (which is the same as f(x). Each equation will start with y =
Remember, you are trying to figure out what happens to the x, whether it's adding something to it, subtracting, multiplying or dividing. A few times there will be two things happening to get "y".

Here is an example:


First, you see that it isn't just adding something because 0+2=2, but 2+2=4, which doesn't match the last row. So, then try to multiply. To get last row, you would multiply 2x4=8, but you can't multiply 0x4 to get 2, so that doesn't work. Just keep trying different combinations until you find something that makes sense. Remember, most of these will work with just one step. There are three that take two steps.

For #13-20, you will be writing a table of values and using the numbers -2, 0, and 2 as your x values. Find the y values by plugging in the x values. Then, graph the ordered pairs created in your table on a graph and connect the dots. Here is an example:
Start by drawing the table of values and in the x column, write -2, 0, and 2. Then, plug in -2 where the x is in the equation. Solve that equation. Then, plug in 0 and solve, and 2 and solve. Write each solution in the y column next to the x value you plugging in. Now you have three ordered pairs. They can be written like this: (-2, 5) (0,1) (2, -3)

Graph these three points on a coordinate plane and connect the dots:


See you tomorrow!
Mrs. Swickey