These lower-level grades are not nationally supervised and will vary according to schools, but most follow very simple vocabulary patterns. Many schools will have around six lessons per year.
These middle-level grades are not mandatory, but many local boards of education will provide some sort of English, usually from ten to twenty lessons a year. Common paths are as English conversation or as part of 総合学習 (sougou gakushuu – integrated or interdisciplinary studies).
These upper-level grades have nationally-mandated English lessons (35 hours per year). They use national textbooks (Hi Friends, replacing Eigo Note), which aim to provide a standard and some preparation for difficult junior high school English lessons.
Hi Friends is broken into two books and seventeen lessons. The targets and materials that can be found on this site are listed below. Official and edited worksheets are attached at the bottom of the page. Official manuals can be found at the MEXT website.
Hi Friends 1:
Hi Friends 2: