The teaching of comprehension is something that affects every discipline. The following resources can help you with teaching comprehension.
This website breaks it down and has a lot of great ideas:
The strategies on this website are a good place to start: http://www.readingrockets.org/article/seven-strategies-teach-students-text-comprehension
This short handout has some general ideas for helping students with comprehension:
What Has Worked for You?
Share what has worked for you: https://docs.google.com/document/d/1bW_rr0100Xsv3z9-Rbrqn33uC_LwKTPpcvE2rq3obIw/edit