1001 Great Ideas to Take You Through the Year.
All grade levels.
This Istructor Big Book is packed full of everything you need from classroom management hints to reproducible worksheets.

Irodov's problems in general physics
This is very useful book for students of physics class. There are about 1900 problems, their hints and answers. Enjoy

Catchy Words 1.0
Scratch through all the exciting catchy levels of this whiskered word game for all ages! Have fun while improving your vocabulary and word-building skills and get enormous Round Word Bonuses. Use wholesome hints of an invisible cat-friend to see how he looks like at the end of the round. It's a lucky chance to increase your brainpower having fun at the same time! Add a new pet to your game collection!