Counter and Theme Toggle - Logo Typing CST Test
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Counter and Theme Toggle — Logo Code
Demonstrates a simple counter with theme toggling using Logo variables and procedures.
make "count 0
make "isDark 0
to updateUI
print (sentence "Counter: :count)
print (sentence "Theme: (if :isDark = 1 [Dark] [Light]))
end
to increment
make "count :count + 1
updateUI
end
to decrement
make "count :count - 1
updateUI
end
to reset
make "count 0
updateUI
end
to toggleTheme
make "isDark (1 - :isDark)
updateUI
end
; Simulate actions
updateUI
increment
increment
toggleTheme
decrement
resetLogo Language Guide
Logo is an educational programming language known for its turtle graphics and simple syntax, designed to teach programming concepts and computational thinking to children and beginners.
Primary Use Cases
- ▸Educational programming for children
- ▸Teaching mathematics and logic
- ▸Turtle graphics for visual learning
- ▸Introductory programming courses
- ▸Developing problem-solving and algorithmic thinking
Notable Features
- ▸Simple and readable syntax
- ▸Turtle graphics for immediate visual feedback
- ▸Support for recursion and procedures
- ▸Interactive command-based environment
- ▸Encourages exploration and experimentation
Origin & Creator
Developed in 1967 by Wally Feurzeig, Seymour Papert, and Cynthia Solomon at MIT.
Industrial Note
Logo’s turtle graphics made it a pioneering tool for teaching algorithmic thinking and computational concepts in classrooms worldwide.