Normally you would learn to read hiragana and katakana before moving on to learning to read vocabulary and kanji (like you learn your ABC's before learning to read English words).
On the right side of the "Lessons" page it has a section which says "For beginners", which suggests you should do hiragana and katakana before starting level 1.
@Keiyakusha_Yin, The "to do" section never mentioned hiragana and katakana in the past. I don't know if it has been changed?
December 1, 2015 at 5:29am