Unit 1, Lesson 1 First Names

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Unit 1, Lesson 1First Names
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Three Day Lab Lesson

• This lesson is a lab.
• We will explore the length of our names and
  create a class data table and graph.
• Later, we will also make individual data tables
  and graphs.

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This is What We Will Learn

• To identify and use variables
• To make and interpret bar graphs
• To collect, organize, graph, and analyze data
• That problems can be solved by more than one
  method and that different methods should give us
  the same results
• To use data in tables and graphs to make
  predictions

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Vocabulary

• First Name You will use the first name you use
  in school.
• Variable Something that is different. There
  are two variables in this lesson.
• The number of students in the class.
• The number of letters in each name.

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Collecting the Data

• Write your name on a post-it note
• Count the letters
• Show the number of letters like this
• L______
• Place the post-it notes on the data table

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Analyzing the Data

• Discuss these questions with your partner and
  group. We will answer as a group.
• What do you notice about the data?
• Who has the longest name? What is the number of
  letters in that name?
• Who has the shortest name? What is the number of
  letters in that name?
• Does anyone have a first name with eight letters?

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Vocabulary

• Most common what happens or occurs most often.
  Fourteen of my fifteen students have a dog for a
  pet. So, a dog is the most common pet.

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Analyzing the Data

• How many students have first names with six
  letters? Five letters?
• What number of letters is most common in first
  names?
• Do more than half the students have names that
  have either six or seven letters?

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Adding a Third Column

• This column will tell us how many students have
  names with the same number of letters.
• What title should we give it? Why?
• Would N for Number of Students be a good choice
  to represent this variable? Why or why not?

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Complete the S Column

• Discuss these questions with your partner and
  group.
• What is the total or sum of the numbers in that
  column?
• What does this sum represent?
• Be sure to CHECK THE DATA!

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Vocabulary

• Vertical Up and down, numbers or shapes are
  arranged like a vine from the bottom to the top.
• Horizontal Side to side, numbers or shapes are
  arranged from side to side, sitting on a line
  like the ground or floor.

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Graphing the Data

• Fill in the data table on page 5
• Make the graph on page 5
• Discuss these questions with your partner and
  group.
• Where is the vertical axis? What is the label
  for this axis?
• Where is the horizontal axis? What is the label
  for this axis?

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Graphing the Data

• Which numbers are the number of letters in the
  names? Those on the horizontal axis or those on
  the vertical axis?
• What do the numbers on the vertical axis show?

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Exploring the Data

• You will answer the following questions by
  raising your hand and answering on Go.
• How many letters are in the longest name?
• How many letters are in the shortest name?

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Exploring the Data

• What is the most common number of letters?
• How many students have names with six letters?
• How many students have names with five letters?
• Do more than half the students have names with
  either six or seven letters? How did you figure
  this out?

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Exploring the Data

• Discuss these questions with your partner and
  group.
• What is the shape of the graph? Why does it have
  this shape?
• Compare the graph and the data table. How are
  they alike? How are they different?
• Which bars are the same height? Why?

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Exploring Data

• Why arent there bars above every number on the
  horizontal axis? What does this mean?

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Organizing Materials

• Put your First Names Data Table and Graph in your
  math folder.
• You will use this page tomorrow to write in your
  journal. The prompt follows.

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JOURNAL PROMPT

• This is your prompt for tomorrow morning.
• Explain how the graph would be different for full
  (first and last) names. Your classmates first
  and last names will be on the white board.

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Classmates Names

• Nirmit Brahmbhatt Tykita Corbin
• Jasmine Carmean Sky Doughty
• Solomon Duverger Makayla Steele
• Morgan Edwards Tegan Shockley
• Dimitrius Hamlin Desiree Hare
• Anthony Pimental Anthony Pavone
• Armani Vermillion Douglas Willey
• Robert Williamson

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EXTENSIONS

• What if we used full names? What will happen to
  your graph.
• What if we changed the definition of name length?
  What if we used number of syllables or number of
  vowels in each name, instead of number of letters?

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This is What We Have Learned

• To identify and use variables
• To make and interpret bar graphs
• To collect, organize, graph, and analyze data
• That problems can be solved by more than one
  method and that different methods should give us
  the same results
• To use data in tables and graphs to make
  predictions