BATS In the World Around Us

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BATSIn the World Around Us

• Created by
• Laura Adams
• Molly Garner

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TEKS

• Construct picture and bar-type graphs
• Draw conclusions from graphs

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OBJECTIVES

• Students should gain an understanding of what a
  bar graph is and how it works.
• Students will measure the wingspans of bats using
  MMs.
• Students will record the data.
• Students will take the measurement and put the
  same number of MMs on the bar graph.

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ANTICIPATORY

• Do you think bats are all the same size?
• How do you think bats fly?
• How would a wingspan affect a bat's ability to
  fly? Is bigger faster? Is smaller more agile?

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Instructional Strategies

• Place the MMs on the first bat from the end of
  one wing to the end of the other wing. (This is
  called the Wingspan.)
• Count the number of MMs.
• Record the number on your hand-out.

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Instructional Strategies

• Can you think of a graph that would record the
  information so someone can just look at it and
  understand it?

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Instructional Strategies

• BAR GRAPH!!
• Draw a horizontal line as the X-axis.
• Draw a vertical line as the Y-axis.
• Label both axises
• Y-axis Number of MMs
• X-axis Bat
• Make marks on the Y-axis to represent 1 MM and
  number the marks

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Instructional Strategies

• Count out the number of MMs that you recorded.
• Put the MMs in a vertical line on the graph
• Put a mark where the top MM is.
• Remove the MMs.
• Connect the mark to the bottom of the graph.
• Color in the bar you just created with any color.

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Independent Practice

• Repeat for the
• Mexican Free-Tail Bat
• Pillad Bat
• Remember, if you have a question, ask a peer
  before raising your hand!!

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CLOSURE

• Name one thing you learned today.
• When do you think you could use bar graphs in
  real life?

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