Both of my children will be attending middle school this year where they will be offering block days: Monday periods 1, 2, and 3, Tuesday periods 4, 5, and 6, etc. My tip is to purchase 2 backpacks so they will have the appropriate materials in each backpack for each block day. Less paper shuffling means less opportunity for misplacement!
Source: PTA recommendation
By Mom of JH from Dunedin, FL