3rd Grade Research Writing Freebie This freebie comes from the 3rd Grade Research Writing Unit. In that unit, there are five lessons. This specific free lesson focuses on organizing and sorting pieces of information into categories- which helps them master paragraph writing. The lesson activities may take between 3 and 4 days to complete. There are whole group, partner, team, and independent activities in each lesson to help the students break down each part of the standard. Combined with the ot