Many articles and resources for parents and teachers of ELL students.
This is one of the best on-line resources for any student learning English. From videos to live conversations to preparation for the TOEFL exam, this site has everything an English language learner might need. Everything is organized by skill level for quick, easy access. This site can be translated by a click of the mouse for use by more than a dozen different languages. Bookmark this one!
https://www.talkenglish.com/FL Official Test Preparation Site
If your ESL student is headed to college in the U.S. or internationally, they might be required to take the TOEFL in place of the written SAT or ACT. This site guides you from the outset, explaining which countries/colleges/universities require the test, explaining testing costs, finding testing locations, etc. to providing your student with online practice tests.