One of the best ways to learn literacy strategies? Ask you school's ELA teachers what they do. This video models several strategies using informational text, which transfers perfectly to science, math, and technology texts.
A more detailed set of ideas that worked in a low-performing school in California that made tremendous gains in test scores. Check out the section on reciprocal teaching, which requires a lot of modeling and practice, but produces tremendous gains in student achievement.
This is an excellent resource for teachers in older grades to make sure that students have the skills needed to understand content-specific vocabulary, analyze text, and pull relevant meaning from readings. It focuses on 6 major components of literacy in detail, which those not familiar with literacy instruction may not have had any exposure to. Knowing these key structures will make you better equipped to tackle students' reading difficulties, and understand why students may not understand.
If you are not an ELA teacher, you may be questioning why you need to understand literacy strategies. In history, students need to know how to "read historically," which means understanding how dates are important to the text. The point of this piece is that no matter what you teach, students need a certain set of skills in order to effectively read your texts.
If you have been hearing at faculty meetings that your school will be focusing more on improving literacy and you are not sure how it fits into your curriculum, look at this article for a guide of what literacy actually entails. It involves more than just being able to read the words on a page.