Use Khan Academy's API to get the number of challenges completed within a specific computer programming curriculum

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mbbackus

8 augustus 2018 21:25

I give my students two grades for Khan Academy. One of these grades is based on the number of challenges they complete within a specific computer programming course. Unfortunately, I do not see a way to access this information for my students using the API. As a consequence, I've had to build a python/selenium script that literally goes to the progress page for each student and extract the number of completed challenges for that course. For a variety of reasons that I won't go into, it takes the script an hour or so to run. I'd like to make a simple request to the API to get the following:

Get the number of completed challenges within the Intro to JS course that each of my students in a given class have completed since January 1st 2018.

If I could make a couple requests like that, it should only take a couple minutes for my script to get the data that I need.

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Mrs Abbott

9 augustus 2018 00:45
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QHQ "Use Khan Academy's API to get the number of challenges completed within a specific computer programming curriculum" API....Academic Performance Index, right? @mbbackus....great question. I teach grade 8 math and algebra 1, so I don't know how student progress is tracked with the Khan Academy Computing courses. In the past, to create student progress reports I would go to the Class page. Then under the Settings tab, I would Download Student Data as a CSV file. Then I would open that in Excel and run a couple of macros that I created to make student progress reports that I could give to my students and/or send to parents, if needed. I think I could use filters and macros to generate what you are talking about.

Alternatively, doesn't Khan Academy give badges for completing "challenges"? I think the weekly Khan Academy Highlights report, may report if a students receives a badge for a challenge.

Third alternative: Is there a final screen that can be printed out or saved as a PDF? Then part of the class routine would be for the student to print out or upload the "evidence" of completion in a shared real or virtual portfolio folder.

I hope one of these ideas helps. Please let me know if I have missed the mark.
mbbackus

9 augustus 2018 10:26
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Thanks for your response. Unfortunately, the spreadsheet that you can download does not include the number of challenges mastered. The badges are an okay way to go with the Intro to JS course, but the HTML/CSS course is only one badge. I don't want to wait a month or two to give students credit for the work they're doing, especially since many of them will start the course but never earn the badge. As for the printed PDF option - it's more cumbersome than my python/selenium script.

The reason I bring it up is because this is data that Khan Academy already tracks, it's just a matter of making it easily accessible either via download or through the API. I'd take either (I'm not picky). It would give teachers greater resolution when assigning grades.
mbbackus

2 september 2018 23:02
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To answer your question about API - it stands for Application Programming Interface.

It took awhile and I had to use Khan's internal API for which there is no documentation, but I was able to write a script that can grab data for challenges completed in any of the programming courses. Somebody else asked a similar question on Stack Overflow. My response complete with example code can be found here: https://stackoverflow.com/a/52139431/3865173

If anyone needs help setting this up, feel free to contact me: http://www.akrobotnerd.com/contact-me

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Use Khan Academy's API to get the number of challenges completed within a specific computer programming curriculum

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