When do you recommend using a calculator?

Saxon recommends the use of a calculator at the start of the Algebra series. By the time a student enters Algebra, they should have enough computational skills under their belt. The time it takes to do a lesson will increase once they begin Algebra, so we’d like to see them spend the majority of their time practicing their new algebra skills. However, access to a calculator should only be granted once the student’s computational skills are already in place.