Are you an inquisitive person? Look for curiosities, peculiarities and so forth.  Difficult words? Pronunciation? Spelling? Look for them up online.  Do you fancy some free lesson plans?  Do your students need extra help with grammar? Check these out.  Do your students need more practice in reading, writing and listening?  Lack of ideas for teaching kids? Check these sites out!  Short of time to think of a game or activity? Try these links and have fun!  Sites educacionais