1. The Hare Raising Experience of Logo in the Classroom
Turtling Around
The Hare Raising Experience
of Logo in the Classroom
Goal: Learn Logo
Motivation: Reader’s Digest Version
Go through Project Form

2. Turtling Around (Middle School)
Leggo my Logo!
Turtling Around (Middle School)
Algorithmic Thinking and Programming
free teacher resources
MSWLogo from
Logo program
Presentation Software (Office)
SKILLS: Using the Software
CONCEPTS: Some type of advanced programming
CAPABILITIES: Create a unique project.

3. Components of the Language
Skills
The use of the Logo language
Components of the Language

4. Introducing Logo
Vocabulary

5. Vocabulary Immediate mode Code Syntax
Commands happen immediately on execute/enter
Commands are lost when program is closed
Code
Instructions given
Syntax
Programming “grammar"

6. Vocabulary (con’t) Programming mode Procedure
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

7. Introducing Logo
The Commands

8. The Commands Forward n (fd n) Back n (bk n) Right n (rt 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

9. The Commands (con’t) Setheading n (seth n) Setxy x y
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)

10. The Commands (con’t) Penup (pu) Pendown (pd) Penerase (pe)
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

11. Procedures Start with Variable Code Finish with TO Goes on TO line
Preceded by :
Code
Follows TO line
If variables are used they must be preceded by :
Finish with
END

12. Algorithmic Thinking & Programming
Concepts
Draw a Picture
-critical attributes: 2 colors, 10 steps, 10 different commands
Initials project (picture)
Maze Game
-Navigate a course
-Optimum route
-Create a puzzle
-Using skills such as procedures, looping, conditionals, variables.
Algorithmic Thinking
& Programming

13. Two Colors Ten Commands
Example Assignments
Draw a Picture
Two Colors
Ten Commands
These are the critical elements of the assignment
-cartoon figure is an example

14. Procedures Looping Conditionals
Example Assignments
Initials
Procedures
Looping
Conditionals
These are the critical elements of the assignment
-cartoon figure is an example

15. Maze Golf Course Digestive System Tic-Tac-Toe
Example Assignments
Create a Puzzle
Maze
Golf Course
Digestive System
Tic-Tac-Toe
Navigate
Design
Optimum course
Practice Angles-

16. Capabilities Manage Complexity Test a Solution Collaborate
Communication
Abstraction
MANAGE COMPLEXITY; original interactive program
TEST A SOLUTION; debugging, troubleshooting, enhancements (better mousetrap)
COLLABORATE: Create an object oriented program
COMMUNICATION:
-Teach what they learned
-Teach another student to use Logo
-Write about a real world application
How Logo relates to other languages

17. Other Resources http://mckoss.com/logo/
Logo lessons
History of logo
Logo for all
Logo lessons
More logo lessons