Flex classes can start any time throughout the year and there is flexibility on the pace of work submitted. That being said, every class has a standard minimum number of assignments that are expected to be completed each week. A math class may expect 2-3 assignments minimum per week, while an elective will generally expect 1. All the assignments, quizzes and yes even tests are open note. Many parents balk at this, but, from what I have seen, this is a non-issue. If a student works through the assignments and takes notes they really learn the material. Most tests, even those for math courses, have essay questions where essentially they must explain how they got a particular answer which demonstrates their understanding of the concepts. A common complaint is the lack of live instruction, but nearly every class does offer some live lessons and some teachers have set "office hours" where students can just drop in a zoom room for questions and assistance.
While the course options do vary slightly between Flex and Full-time, I have been very impressed with the course selection for Flex and the quality of the curriculum. They offer interesting electives available both at the the Middle School and High School level. I previously wrote about my daughter's FLVS: Middle School Photography course. My son took Business Keyboarding in Middle School to improve his typing speed and it was very helpful. He is now taking the High School Foundations of Programming class.
The core classes are thorough and very well done. Both of my kids took the Middle School Pre-Algebra course to prepare for high school Algebra. My son has since completed the High School Algebra I Honors course with a high A and is excited to start Honors Geometry this summer. They both have taken English 1 Honors where they covered speeches of presidents, poetry and Shakespeare in affective thought provoking ways.Advanced Placement courses and recently added an AP Capstone Program. My sophomore son will be taking his first AP course this fall.
The FLVS Flex option is a great virtual learning solution if you want schedule flexibility, quality curriculum and your students have a high degree of self direction.
I do not personally have any experience with the elementary program. My experience has been with the Middle and High School Flex program which I highly recommend.