Friday, August 19, 2011

Friday, August 19th

Sixth Grade

Today, we spent some more time on place value. We worked on numbers up to hundred trillions and this group is so enthusiastic! I'm enjoying teaching them so much. We also began working on expanded notation and the class got their first homework assignment today. They need to write 12 numbers in expanded notation. The numbers only have 5 digits in them, so that everyone could get used to this form of expanded notation. If you've forgotten, this is what you should do:

57,362

(5 x 10,000) + (7 x 1,000) + (3 x 100) + (6 x 10) + (2 x 1)

You write each digit in parenthesis and multiply it by the place it is in. Since 5 is in the ten-thousands place, we write 5 x 10,000, and since 7 is in the thousands place, we write 7 x 1,000.

Please email me if you have any questions! Remember, my email has changed. I'll fix it in the box at the right at some point...but it is: b s w i c k e y AT s c b c s DOT o r g
(There are no spaces and use the @ symbol for AT and the period . for DOT)

Seventh Grade

Math - We continued working on saying large numbers today, took two more math facts tests and began discussing large numbers. We talked about a googol and a googolplex and whether or not you could write either number. The class was able to write a googol and I timed them. Next, we'll find the average class time and try to determine if a person could write a googolplex in a lifetime! Next week, we will begin working on scientific notation....how to write very large and very small numbers efficiently.

Geography - We read Section 1 today and watched a short video about latitude and longitude. Write the definitions from #1-2 of the Section 1 Assessment and then complete the Section 1 worksheet for homework.

Eighth Grade

Pre-Algebra-Today, we finished solving the problem, "Can you write a googolplex in a lifetime?". It was rather interesting to figure out just how many zeros a person can write in the average lifespan. Then the class took a short quiz over Scientific Notation to see what they remembered. It was pretty confusing for most everyone so we will be spending the next several days working on converting numbers into scientific notation and then back to standard form.

Algebra I - Today, we went over the scientific notation quiz I gave them yesterday. Most everyone had some idea as to how to do them so we practiced in class for awhile and then I gave them a homework assignment. It is the Scientific Notation worksheet B. Here are a few examples - the first picture shows numbers written in scientific notation being converted to standard form. The second shows standard form being changed to scientific notation. You can click them to see them bigger.



See you tomorrow!

Mrs. Swickey