Username & Log-in for math 7th grade
Students, here is the username & password to log-in to the on-line textbook.
Username: mcooper499
Password: d9x8
Website: my.hrw.com
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August 2008
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Math 7 Unit 1
Name _____________________________________
________ 4 stem and leaf plots (5 points each)
________ 4 frequency tables (5 points each)
________ 4 histograms (5 points each)
________ 4 box and whisker plots (5 points each)
________ question 1 completed (2 points)
________ question 2 d answered (2 points)
________ question 3 answered (2 points)
________ question 4 answered (2 points)
________ question 5 paragraph written (2 points)
________ question 6 answered (2 points)
________ mean, med, mode calculated in #3 (4 points)
________ range and IQR calculated in #4 (4 points)
______ Total Points = Grade
CHECKED BY _____________________________________
Unit 1 Dealing with Data
Dealing with Data
Dear Parents,
Welcome to the 2008-2009 school year! We are eager to work with you and your student as we learn new mathematical concepts. The State of Georgiais introducing Performance Standards that call for students to be actively engaged in doing math in order to learn math. In the classroom, students will frequently work on tasks and activities to discover and apply mathematical thinking. Students will be expected to explain or justify their answers and to write clearly and properly.
Mathematical content will be organized in units based on the content of the Georgia Performance Standards (GPS). Since most textbooks published before the adoption of the new standards do not contain all the topics addressed in the new GPS, the teacher will be providing content notes in class and supplementing practice through tasks. When appropriate, problems will be assigned from the text.
Below is information regarding Unit 1, Dealing with Data. Look for future newsletters.
Students will be able to:
· Create frequency distributions
· Represent data in scatter plots and box & whisker plots, as well as graphs from 6th grade standards, and analyze by drawing conclusions about the data
· Find measures of central tendency (mean, median, mode)
· Find measures of variation (range, quartiles, interquartile range)
Vocabulary
Measures of Central Tendency: values from a collection of data: mean, median, and mode
Mean: The average of a set of numbers.
Median: The middle number of a set of numbers.
Mode: The number that appears the most in a set of numbers
Range: The difference between the highest and lowest number in a set of numbers.
Quartile: When data in asset are arranged in order, quartiles are the numbers that split the data into quarters.
Interquartile: the difference between the upper quartile and lower quartile
Outlier: A value that is very far away from most of the values in a data set.
Scatter plot: A graph that shows the general relationship between two sets of data.
Box & Whisker plot: A diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values. A box is drawn around the quartile value and whiskers extend from each quartile to the extreme data points.
Sample: a selection from a population
Parameter: a quantity that describes a statistical population
Statistic: the collection, organization, and interpretation of data
Dependent Variable: a variable whose value is determined by other variables in a function
Independent Variable: a variable whose value determines that of the dependent variable
For examples & help with vocabulary, visit:
