Puzzles (61-80). Here is a bundle of 20 downloadable, printable crossword puzzles to engage the brain and enhance vocabulary building skills. Increase your personal lexicon with these created-for-you bundles of free crossword puzzles. Printable crosswords are great activators of teenager brains. With differentiated instruction, students in late elementary and middle grades 7,8,9 classrooms will also be able to access the challenge. Use these small bundles of printable puzzles to engage problem solving skills with homeschooled students and with English language learners, with intermediate language acquisition.