Find here lots of resources to help you learn about appropriate methods of assessment in language classrooms. It is an important and "large" field and hopefully these videos and materials will help you with your own classroom practices. Also see Andrew Finch's videos on assessment This folder also has many assessment resources.
Joe Bower posted some links about assessment onhis blog. He's pretty radical and espouses a view that assessment should be about helping the student learn - not a formal outcome.
You say you want this, so then why are you doing that?
Grading: Where do I stand?
My de-grading philosophy Q & A
The day I abolished Grading
Real learning is found in children not data
Working with Parents to Abolish Grading
No Good Reason to Grade
What leads to success?
Information vs Reward & Punishment
Detoxing children from grade-use
No Grades & Group Work
Should Students be paid to learn?
Intrinsic Motivation and Autonomy
Grades are Distracting
Multiple Choice Tests Suck