Turtling Around

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Turtling Around

• The Hare Raising Experience
• of Logo in the Classroom

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Leggo my Logo!

• Turtling Around (Middle School)
• Algorithmic Thinking and Programming
• http//www.ecu.edu.au/pa/ecawa/sig/logo/program/i
  ntro/logoprog.htm free teacher resources
• MSWLogo from http//www.softronix.com/
• Logo program
• Presentation Software (Office)
• SKILLS Using the Software
• CONCEPTS Some type of advanced programming
• CAPABILITIES Create a unique project.

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Skills

• Components of the Language

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Introducing Logo

• Vocabulary

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Vocabulary

• Immediate mode
• Commands happen immediately on execute/enter
• Commands are lost when program is closed

• Code
• Instructions given
• Syntax
• Programming grammar"

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Vocabulary (cont)

• Programming mode
• Instructions (code) put into a procedure
• Carried out when procedure is called

• Procedure
• A series of code used within LOGO that performs a
  single task

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Introducing Logo

• The Commands

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The Commands

• Forward n (fd n)
• Moves forward n steps
• Back n (bk n)
• Moves backward n steps
• Right n (rt n)
• Turns right n degrees
• Left n (lt n)
• Turns left n degrees

• Penup (pu)
• Lifts pen up
• Pendown (pd)
• Returns to draw mode
• Clearscreen (cs)
• Erases all sends turtle to starting point
• Home
• Sends turtle to starting point

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The Commands (cont)

• Setheading n (seth n)
• Sets heading of turtle to n degrees
• Setxy x y
• Sets turtles x and y coordinates
• Setpencolor r g b (setpc r b g)
• Sets pen color

• Setscreencolor r g b (setsc r b g)
• Sets screen color
• Setfloodncolor r g b (setfc r b g)
• Sets flood color
• Fill
• Fills shape (turtle must be inside shape)

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The Commands (cont)

• Penup (pu)
• Lifts pen up
• Pendown (pd)
• Puts pen down to draw again
• Penerase (pe)
• Puts pen in erase mode

• Penpaint (ppt)
• Puts pen back in drawing mode
• Hideturtle (ht)
• Hides the turtle
• Showturtle (st)
• Shows turtle again

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Procedures

• Start with
• TO
• Variable
• Goes on TO line
• Preceded by

• Code
• Follows TO line
• If variables are used they must be preceded by
• Finish with
• END

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Concepts

• Algorithmic Thinking
• Programming

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Draw a Picture
Example Assignments

• Two Colors
• Ten Commands

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Initials
Example Assignments

• Procedures
• Looping
• Conditionals

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Create a Puzzle
Example Assignments

• Maze
• Golf Course
• Digestive System
• Tic-Tac-Toe

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Capabilities

• Manage Complexity
• Test a Solution
• Collaborate
• Communication
• Abstraction

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Other Resources

• http//mckoss.com/logo/
• Logo lessons
• http//www.engin.umd.umich.edu/CIS/course.des/cis4
  00/logo/logo.html
• History of logo
• http//www.the-hunters.org/logo/
• Logo for all

• http//www.southwest.com.au/jfuller/logotut/menu.
  htm
• Logo lessons
• http//www.cs.bsu.edu/homepages/ggreen/mwpro/title
  _page.htm
• More logo lessons