CS50 2019 - Lecture 0 - Computational Thinking, Scratch

David J. Malan introduces computational thinking, binary representation, algorithms, and basic programming concepts using Scratch.

TABLE OF CONTENTS 00:00:00 - Introduction 00:02:35 - Representation 00:06:02 - Binary 00:09:17 - Binary Bulbs (Demo) 00:12:22 - Representing Letters 00:14:08 - Abstraction 00:15:35 - Unicode 00:17:21 - RGB 00:19:38 - Representing Images and Video 00:21:28 - Finding Mike Smith 00:24:54 - Solving Problems Effectively 00:28:20 - Pseudocode 00:31:18 - Scratch 00:33:16 - The Scratch Editor 00:39:58 - meow 00:42:22 - count0 00:43:42 - pet0 00:44:42 - pet1 00:45:25 - bounce0 00:48:15 - bounce1 00:48:49 - bark 00:50:38 - marco 00:52:19 - cough 00:54:03 - Custom Blocks 00:56:09 - Oscartime 00:58:21 - Ivy's Hardest Game TOPICS * Problem solving * Inputs, Outputs * Representation * Unary, Binary, Decimal * Abstraction * ASCII, Unicode * RGB * Algorithms * Running Time * Pseudocode * Scratch * Functions, Arguments, Return Values * Variables * Boolean Expressions, Conditions * Loops * Events * Threads *** This is CS50, Harvard University's introduction to the intellectual enterprises of computer science and the art of programming. Demanding, but definitely doable. Social, but educational. A focused topic, but broadly applicable skills. CS50 is the quintessential Harvard course. FALL 2019 youtube.com/playlist?list=PLhQjrBD2T381L3iZyDTxRwOBuUt6m1FnW *** HOW TO SUBSCRIBE youtube.com/subscription_center?add_user=cs50tv HOW TO TAKE CS50 edX: cs50.edx.org/ Harvard Extension School: cs50.harvard.edu/extension Harvard Summer School: cs50.harvard.edu/summer OpenCourseWare: cs50.harvard.edu/x HOW TO JOIN CS50 COMMUNITIES Discord: discord.gg/T8QZqRx Ed: cs50.harvard.edu/x/ed Facebook Group: facebook.com/groups/cs50/ Faceboook Page: facebook.com/cs50/ GitHub: github.com/cs50 Gitter: gitter.im/cs50/x Instagram: instagram.com/cs50 LinkedIn Group: linkedin.com/groups/7437240/ LinkedIn Page: linkedin.com/school/cs50/ Quora: quora.com/topic/CS50 Slack: cs50.edx.org/slack Snapchat: snapchat.com/add/cs50 Twitter: twitter.com/cs50 YouTube: youtube.com/cs50 HOW TO FOLLOW DAVID J. MALAN Facebook: facebook.com/dmalan GitHub: github.com/dmalan Instagram: instagram.com/davidjmalan/ LinkedIn: linkedin.com/in/malan/ Quora: quora.com/profile/David-J-Malan Twitter: twitter.com/davidjmalan *** CS50 SHOP cs50.harvardshop.com/ *** LICENSE CC BY-NC-SA 4.0 Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International Public License creativecommons.org/licenses/by-nc-sa/4.0/ David J. Malan cs.harvard.edu/malan malan@harvard.edu