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Wicomico County Mathematics Content Standards. 4.5.1 Gather relevant data and compare data sets to answer a question. 4.5.2 Organize and display data using stem and leaf diagrams 4.5.3 Analyze and interpret stem-and-leaf diagrams. Warm-Up. Show this data on a stem-and-leaf diagram.

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## Wicomico County Mathematics Content Standards

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**Wicomico County Mathematics Content Standards**• 4.5.1 Gather relevant data and compare data sets to answer a question. • 4.5.2 Organize and display data using stem and leaf diagrams • 4.5.3 Analyze and interpret stem-and-leaf diagrams**Warm-Up**Show this data on a stem-and-leaf diagram. Time Spent on Carving Pumpkins • 25 28 32 20 26 • 33 26 19 32 28 20**Time Spent on Carving Pumpkins**1 2 3 9 0 0 0 5 6 6 8 8 2 2 3**Math Journal**Write instructions for a fifth grader to follow to make a stem-and-leaf diagram.**Make a stem-and-leaf diagram to show the data on ghost**presidents.**Scoring Rubric for the Stem-and-Leaf Diagram**• 2 POINTS • All information is accurately included. • Plot is titled. • The plot is neat, well-organized, and attractive. • Leaves are ordered from smallest to largest. • Stems and leaves are accurately displayed. • 1 POINT • At least 3 of the above criteria have been met. • O POINTS • Less than 3 of the above criteria have been met.**Would a line plot be a sensible way to show this data?**Explain**How are line plots and stem-and-leaf diagrams alike?**How are they different?**Stem-and-Leaf Diagram**• The back-to-back stem-and-leaf diagram shows the average daily October temperatures for Spooky City and Candy Corn Village. Use the plot to compare the pattern of October temperatures in the two cities.**Spooky City**Candy Corn Village 2 2 9 8 7 7 7 5 3 3 1 1 1 0 8 8 8 7 4 4 2 2 0 0 6 6 4 3 3 0 7 6 5 4 3 1 0 0 0 1 1 1 1 2 3 3 4 5 2 5 5 5 6 6 6 7 8 9 9 2 2 3 4 4 5**What do the digits in the stem represent?**• Which leaves, on the right or the left, show temperatures for each city? • Spooky City ___Candy Corn Village ___**The lowest temperature for Spooky City was ___. The highest**temperature was ___. For Candy Corn Village, the lowest temperature was ___ and the highest temperature was ___.**How many more days was the temperature in the 60’s and**70’s in Candy Corn Village than in Spooky City?**Writing About Math**Write 2 or 3 sentences comparing the temperature patterns for the two cities.**How can you compare the pattern without comparing the actual**temperatures?**Homework**Write a paragraph or more about stem and leaf diagrams and line plots. Use the notes that you took in class today.

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