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Yes, you have improved your reading.
You have earned badges and "green leaves" on Khan Academy
khanacademy.wikia.com/wiki/Energy_PointsEnergy Points is an incentive on Khan Academy, given for completing skills, ... The bonus points do not appear on the activity/progress chart but are added to ... Users can also get additional energy pointsfrom earning badges like Da Vinci .
Here's how the WIKI explains it:
Energy Points is an incentive on Khan Academy, given for completing skills, completing programming challenges, earningbadges, watching videos, participating in discussions and a variety of other tasks. Before Khan Academy's new layout in 2012, the number of Energy Points that a user currently had were invisible at any page in Khan Academy. With the new profile page, users can hover over someone's name on comments and programs or go to a user's profile to see their total Energy Points.