theodp writes "'Why do programmers start counting at zero?' wondered Mike Hoye, questioning the conventional programming wisdom. Code.org will soon introduce the practice to a hoped-for audience of 10 million schoolchildren as part of Computer Science Education Week's Hour of Code. In a tutorial created by engineers from Microsoft, Google, Twitter and Facebook that's intended to introduce programming to kids as young as six years old, an otherwise breezy lesson featuring look-ma-no-typing Blockly and characters out of Angry Birds and Plants vs. Zombies, a Mark Zuckerberg video introducing the concept of Repeat Loops includes an out-of-place JavaScript example that shows kids it's as easy as 0-1-2-3 to generate 4 lines of lyrics from Happy Birthday to You by using zero-based numbering with a For-loop and ternary If statement. Accompanying videos by Bill Gates on If Statements and basketball star Chris Bosh on Repeat Until Blocks show the Code.org tutorial is still a work-in-progress. That's no big deal, since CSEdWeek has pushed back the delivery date for final Hour of Code tutorials from its prior little-time-for-testing due date to Dec. 9th, the first day of a five-day period during which teachers are expected to deliver the lessons to 10 million students."

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