Events - Lecture 3 - CS50's Introduction to Programming with Scratch

00:00:00 - Introduction
00:00:42 - When Flag Clicked
00:06:13 - When Sprite Clicked
00:08:10 - Backdrop Chooser
00:13:12 - Drum Kit
00:16:03 - When Key Pressed
00:17:10 - Swimming Fish
00:23:18 - Balloon
00:25:24 - Timer

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This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming.

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About this course
An introduction to programming using Scratch, a visual programming language via which aspiring programmers can write code by dragging and dropping graphical blocks (that resemble puzzle pieces) instead of typing out text. Used at the start of Harvard College's introductory course in computer science, CS50, Scratch was designed at MIT's Media Lab, empowering students with no prior programming experience to design their own animations, games, interactive art, and stories. Using Scratch, this course introduces students to fundamentals of programming, found not only in Scratch itself but in traditional text-based languages (like Java and Python) as well. Topics include: functions, which are instructions that perform tasks; return values, which are results that functions provide; conditions, via which programs can decide whether or not to perform some action; loops, via which programs can take action again and again; variables, via which programs can remember information; and more. Ultimately, this course prepares students for subsequent courses in programming.

Scratch is developed by the Lifelong Kindergarten Group at the MIT Media Lab. See scratch.mit.edu.

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What you'll learn

functions
events
values
conditions
loops
variables
abstraction

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LICENSE

CC BY-NC-SA 4.0
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License
https://creativecommons.org/licenses/by-nc...

David J. Malan
https://cs.harvard.edu/malan
malan@harvard.edu