Harvard Scratch Intro Notes (PDF) - Department of Computer Science
Harvard Scratch Intro Notes (PDF) - Department of Computer Science
Harvard Scratch Intro Notes (PDF) - Department of Computer Science
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ProgrammingPutting on Socks1. let socks_on_feet = 02. while socks_on_feet != 23. open sock drawer4. look for sock5. if you find a sock then6. put on sock7. socks_on_feet++8. look for matching sock9. if you find a matching sock then10. put on matching sock11. socks_on_feet++12. close sock drawer13. else14. remove first sock from foot15. socks_on_feet--16. else17. do laundry and replenish sock drawerCopyright © 2006, David J. Malan 6
ProgrammingSaying Hello in <strong>Scratch</strong>Hello1.scratchCopyright © 2006, David J. Malan 8
ProgrammingStatements...Copyright © 2006, David J. Malan 9
ProgrammingStatementsHello{2,3}.scratchCopyright © 2006, David J. Malan 10
ProgrammingBoolean Expressions...Copyright © 2006, David J. Malan 11
ProgrammingConditions...Copyright © 2006, David J. Malan 12
ProgrammingConditionsHello{4,5}.scratchCopyright © 2006, David J. Malan 13
ProgrammingLoopsCopyright © 2006, David J. Malan 14
ProgrammingLoopsHello{6,7,8}.scratchCopyright © 2006, David J. Malan 15
ProgrammingVariables{Count,Hello9}.scratchCopyright © 2006, David J. Malan 16
ProgrammingMove1.scratchCopyright © 2006, David J. Malan 17
ProgrammingThreadsMove2.scratchCopyright © 2006, David J. Malan 18
ProgrammingThreadsHello10.scratchCopyright © 2006, David J. Malan 19
ProgrammingEventsMarco.scratchCopyright © 2006, David J. Malan 21
<strong>Computer</strong> <strong>Science</strong> S-1<strong>Harvard</strong> Summer School2006Lecture <strong>Notes</strong> on <strong>Scratch</strong>David J. Malanmalan@post.harvard.edu+1-617-523-0925Copyright © 2006, David J. Malan 29
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