Wednesday, November 11, 2015
Homework 11/11
Please complete 4-12. Remember to first change the OUTSIDE number (the divisor) to a whole number by moving the decimal to the right, and then to move the decimal for the INSIDE number (the dividend) the same number of times to the right. You will be turning this in.
Tuesday, November 10, 2015
Friday, November 6, 2015
Weekend Assignment 11/6
Hi everyone! Just wanted to take a minute to recap what we've learned so far in Chapter 4 before you complete your questions.
We first discussed the method for multiplying a decimal by a whole number. *Remember, you should not line up the decimals when you are multiplying - only when you're adding or subtracting.*
1) Set the problem up as though you were dealing with plain ol' whole numbers.
2) Solve (ignore the decimals for now - remember, we're pretending they are both whole numbers).
3) To place the decimal in your answer:
First, count how many numbers after the decimal in the original problem.
Then, going from right to left in your answer, count that many spaces over and put your decimal there.
Example:
4.23 ---> There are two numbers after the decimal here.
x 6
2538 ---> Now, going from right to left, put the decimal two places from the end.
Answer: 25.38
Today we talked about multiplying one decimal by another. *Remember, don't line up the decimals since we're multiplying!*
This method is exactly the same as the method for multiplying a decimal by a whole number.
1) Set the problem up.
2) Solve just like they're whole numbers (ignore the decimal).
3) How many numbers (TOTAL) are there after all the decimals in your problem? Count them up, and then
place the decimal that many places over in your answer.
Example:
3.65 ---> There are two numbers after the decimal here.
x 2.5 ---> There is one number after the decimal here.
9125 ---> Now, going from right to left, put the decimal three places from the end, since we counted
3 numbers total after decimal points in our problem.
Answer: 9.125
We first discussed the method for multiplying a decimal by a whole number. *Remember, you should not line up the decimals when you are multiplying - only when you're adding or subtracting.*
1) Set the problem up as though you were dealing with plain ol' whole numbers.
2) Solve (ignore the decimals for now - remember, we're pretending they are both whole numbers).
3) To place the decimal in your answer:
First, count how many numbers after the decimal in the original problem.
Then, going from right to left in your answer, count that many spaces over and put your decimal there.
Example:
4.23 ---> There are two numbers after the decimal here.
x 6
2538 ---> Now, going from right to left, put the decimal two places from the end.
Answer: 25.38
Today we talked about multiplying one decimal by another. *Remember, don't line up the decimals since we're multiplying!*
This method is exactly the same as the method for multiplying a decimal by a whole number.
1) Set the problem up.
2) Solve just like they're whole numbers (ignore the decimal).
3) How many numbers (TOTAL) are there after all the decimals in your problem? Count them up, and then
place the decimal that many places over in your answer.
Example:
3.65 ---> There are two numbers after the decimal here.
x 2.5 ---> There is one number after the decimal here.
9125 ---> Now, going from right to left, put the decimal three places from the end, since we counted
3 numbers total after decimal points in our problem.
Answer: 9.125
Here are your 9 questions for the weekend (remember, you must show your work for credit!):
1) 2.34 x 9.3
2) 0.45 x 2.9
3) 1.75 x 4.6
4) 2.22 x 9.4
5) 7.97 x 6.6
6) 6.35 1.1
7) 4.67 x 7.8
8) 8.13 x 3.6
9) 3.87 x 2.1
Wednesday, November 4, 2015
Wednesday, October 28, 2015
Monday, October 19, 2015
Quiz Wednesday - Data
Hello, my wonderful mathlings! Please be sure to review the following concepts for Wednesdays's quiz:
I. Graphing
A. Intervals
1. Intervals should be even (count if you need to)
2. Intervals are usually on the y-axis or are the first category in a frequency chart
3. Think of intervals as "categories"
B. Labels
1. Your graphs should always have a title that pertains to the information being represented by
the graph
2. Your x-axis and y-axis should both have labels, even if the information on the graph seems
obvious
C. Accuracy
1. Always re-check your data after you've made your graph
II. Measures of Central Tendency
A. Mean: (average) - add ALL the data, and then divide by how many data points you have
B. Median: FIRST, line up all the data from LEAST to GREATEST; then, find the middle number.
If there are two middle numbers, find the MEAN of the two middle numbers for your median.
C. Mode: number that appears the MOST
D. Range: highest data point minus the lowest data point
III. Drawing conclusions
A. Real-world connections - be sure to think about the data in a real-world setting and be sure that
your conclusions are realistic
B. Comparisons - when asked to compare data, think about how many TIMES greater one statistic
is than another, rather than how "much" more
C. We will focus on this part heavily on the quiz. Please use complete sentences and proofread your
answers
I. Graphing
A. Intervals
1. Intervals should be even (count if you need to)
2. Intervals are usually on the y-axis or are the first category in a frequency chart
3. Think of intervals as "categories"
B. Labels
1. Your graphs should always have a title that pertains to the information being represented by
the graph
2. Your x-axis and y-axis should both have labels, even if the information on the graph seems
obvious
C. Accuracy
1. Always re-check your data after you've made your graph
II. Measures of Central Tendency
A. Mean: (average) - add ALL the data, and then divide by how many data points you have
B. Median: FIRST, line up all the data from LEAST to GREATEST; then, find the middle number.
If there are two middle numbers, find the MEAN of the two middle numbers for your median.
C. Mode: number that appears the MOST
D. Range: highest data point minus the lowest data point
III. Drawing conclusions
A. Real-world connections - be sure to think about the data in a real-world setting and be sure that
your conclusions are realistic
B. Comparisons - when asked to compare data, think about how many TIMES greater one statistic
is than another, rather than how "much" more
C. We will focus on this part heavily on the quiz. Please use complete sentences and proofread your
answers
Monday, October 12, 2015
Survey Project
Hello Mathlings!
Here are the things that need to be included in your project, which is due for presentation this Friday, 10/16.
- Two graphs which represent your data (the graphs you choose will be approved by me after you turn in your project outline Monday) - Both graphs need to be large enough to display to the class. You may present these graphs digitally on the Polyvision Board or with Posterboards. Please remember to label your graphs and to keep your intervals even - you will be graded on the accuracy of your graphs.
- The four measures of central tendency for your data (mean, median, mode and range)
- One written paragraph (6-8 sentences) which explains your survey and draws conclusions based on the data you collected
We will be working on these all week. In addition to your graphs, your measures of central tendency and your paragraph/conclusions, you will be given participation points this week for working with your group and for participating in your group's presentation of information. Please make sure each group member has an opportunity to speak when you present on Friday.
I'm really interested in the questions you've come up with! Have fun with this!!!
Here are the things that need to be included in your project, which is due for presentation this Friday, 10/16.
- Two graphs which represent your data (the graphs you choose will be approved by me after you turn in your project outline Monday) - Both graphs need to be large enough to display to the class. You may present these graphs digitally on the Polyvision Board or with Posterboards. Please remember to label your graphs and to keep your intervals even - you will be graded on the accuracy of your graphs.
- The four measures of central tendency for your data (mean, median, mode and range)
- One written paragraph (6-8 sentences) which explains your survey and draws conclusions based on the data you collected
We will be working on these all week. In addition to your graphs, your measures of central tendency and your paragraph/conclusions, you will be given participation points this week for working with your group and for participating in your group's presentation of information. Please make sure each group member has an opportunity to speak when you present on Friday.
I'm really interested in the questions you've come up with! Have fun with this!!!
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