For those who are into this sort of thing: the problems from the 2015 Putnam exam are now available.
2015 Putnam problems
Published
A mathematician blogs.
A mathematician blogs.
For those who are into this sort of thing: the problems from the 2015 Putnam exam are now available.
God plays dice 
The three things that I feel validate why you should do a TEFL certification course (or one thing comparable) to be able to educate:
reviewing the grammar, learning instructing strategies,
and attending to apply earlier than the real deal.