ReadWorks.org is a wonderful classroom resource for finding reading passages by comprehension skills or to introduce and/or reinforce social studies and science content. The non-profit ReadWorks is committed to giving teachers the research-proven tools and support they need to improve the academic achievement of their students.
ReadWorks provides research-based units, lessons, and authentic, leveled non-fiction and literary passages directly to educators online, for free. Also, the curriculum is aligned to the CCSS.
Teachers can always print reading passages and the corresponding activities, but the passages are particularly terrific for downloading to be used on student iPads or Chromebooks.
In grades 3 and above, where students have Google Apps for Education Accounts, the teacher can use Google Classroom to distribute the passage to the students; Google Classroom will even automatically make a copy of the document for each student if that feature is selected.
Often the ReadWorks passages will have the answer key at the end of the PDF document. You don't want the students to have access to that, so after you download the document, you can remove the answer key pages from the document and save it as a "student" document. Don't know how to do this?--go to https://online2pdf.com/pdf-delete-pages and follow the directions.
Originally posted by Paula Noda.