Tuesday, September 20, 2011

Tuesday, September 20th

Sixth Grade

There is a quiz tomorrow over computation - adding, subtracting, multiplying, and dividing. Also, there will be addition and subtraction word problems. Just take your time and be careful with borrowing and carrying. Everyone knows how to solve these problems, but errors creep in, so don't rush!

Seventh Grade

Math - Stem and Leaf Plots. This is another way to organize a set of data. You have a line drawn between the "stem" and the "leaves". The stem can represent different things, but today, we used the stem to represent multiples of 10. So, a 1 in the stem stands for 10, a 2 for 20, etc. The leaves come from the remainder of the number - in this case - the ones place. So, 25 would be represented on a stem and leaf plot with a 2 on the left side of the line and the 5 on the right side. There is always a key to show you what the plot represents. Here is an example for the following set of data:

Scores on a test: 65, 68, 72, 74, 74, 76, 80, 85, 88, 88, 90, 92, 95, 99

Since the range is between 65 and 99, I'll make my leaves multiples of 10 from 60 - 90, by using the numbers 6, 7, 8, and 9 on the left of the line. Then, for each number in the data set, I'll put the ones place on the right of the line. Always put a number for each number listed in the data set. Even though there are two 74's, you would put a 4 twice after the 7.

After you finish drawing your stem and leaf plot, answer the questions #1-6 on the bottom. (Skip #7)

Geography - There is no homework! The class took a test today.

Eighth Grade

Pre-Algebra: Adding and Subtracting Fractions. First, find a common denominator and make equivalent fractions. The add or subtract. If the top numerator is smaller than the bottom numerator, borrow from the whole number and change the top numerator by adding the denominator to it. Here are a few examples:
Please email me if you are stuck! I am happy to help you if you are confused by one.

Algebra I - There was a quiz today. No homework!

See you tomorrow,
Mrs. Swickey