On the Internet, go to a rubric generator of your choice. Type in "Evaluating Reading Textbooks," along with your name and the name of your school. This helps a rubric to be formed based on the subject matter and level of the rubric you need.
Select the photo or drawing that best represents your subject matter from the images provided. Rather than just a general representation of textbooks, try to find one that shows the specific act of reading. A rubric is only as useful as the material provided in its making.
Enter five objectives for student accomplishment or performance. Describe four levels of performance, from highest or mastery to lowest or beginner's, for each objective. Allow for intermediate rubrics such as developing or accomplished on the second and third levels of evaluation. Sometimes these objectives and levels are expressed in a question form.
After you have described exactly how you wish to evaluate your reading textbooks, click on the generate rubric button. Wait for the results and see if they fit your school system's needs. If they seem too general, you can seek out a more specific or sophisticated rubric generator and compare the results before you do your final textbook evaluation.