Please see attached brief for more details
Inspiration from academic images & symbols:
DNA, protein structure, physics, calculus symbols, molecular models, etc.
Other ideas: Play off the 'generator' allusion of learnerator by making graphic related to an engine or power source
Character: If your logo takes the approach of creating a character, please make it 'flat' in terms of graphics. So an example would be the nomnomtruck monster, the Android phone mascot, or the hipmunk.com character.
Other creative takes are of course welcome!
Another good idea is to make the 'Learn' design different from the 'erator' design. Could be something as simple as a subtle color difference or something more complex.