Best practice : read to the students from the textbook. Student readers usually cannot hold the attention of the class, so it is up to the teacher to read to the students from the textbook, asking questions as you go along and writing vocabulary words on the whiteboard. End your reading with an informal test "on the fly," open-ended or true-false, only a few questions, enough to emphasize important learnings and to fix those learnings in the students' minds. Read out the answers so that the students can grade their own papers. Collect the papers and throw them away later.
Writing for a class of readers other than one's own is very difficult. It takes training, method, and practice. Among those who are good at this are writers of novels and children's books. The writing experts all advise that, besides using a formula, observe all the norms of good writing, which are essential for writing readable texts. Study the texts used by your audience and their reading habits. This means, if you are writing for a 5th-grade audience, study and learn good quality 5th-grade materials.