'(<a href="http://www.j-archive.com/media/2004-06-10_DJ_04.jpg" target="_blank">Cheryl of the Clue Crew explains a graph on the chalkboard.</a>)  Contrary to common use, a steep one of these indicates rapid mastering of a skill'
a learning curve
THE MIND: Contrary to common use, a steep one of these indicates rapid mastering of a skill
Contrary to common use, a steep one of these indicates rapid mastering of a skill
Contrary to common use, a steep one of these indicates rapid mastering of a skill
THE MIND
a learning curve
THE MIND