Common Core Standards
College and Career Readiness Anchor Standards for Writing
Writing RI.3.7
Use information gained from illustrations (e.g., maps, photographs) and the words in a text to demonstrate understanding of the text (e.g., where, when, why, and how key events occur).
This Common Core standard is pretty simple. All students have to do is take into account everything that's in what they're reading (so both words and images) and they should be fine.