Conversation so far:
Where did Walker first go to school?
CANNOTANSWER.
What can you tell me about his education?
Walker signed a law to fund evaluation of the reading skills of kindergartners.
What happened next with the law?
The law also created a system for evaluating teachers and principals.
How were they evaluated?
based in part on the performance of their students.

Question: How did the law help?
Self-contained rewrite: How did the Scott Walker law help?