3. a) Count in base four. Start with 1 unit, and continue adding units, one at a time. Say the number reach a flat. aloud and write the number in base four each time. Regroup whenever necessary. Stop when you b) Your numbers show which boxes are needed for 1 to 16 chocolate candies. Place the numbers in order in the table below. Note: start at the top left-hand corner of the table below and work your way across. Then continue on the left-hand side of the next row. c) Describe patterns in the table. Why do Unit x1 long x1 / long x3 long x3 these patterns occur? Unit x 1 Unitx/ " Unitx 1 Unit XR longx1 long longxs Unit x 2 Unitx z Unitx z Unity? longx1 long x 3 | long x3 Unit x 3 Unitx3 Chit x 3 Long X 1 long x 2 long x 61 :10 Flat * 1 d) Why isn't the last entry in the table, 40B4? Explain this first to your partner then record your response here. ston of boy un 2018 Elementary Mathematics Project . Boston University . schapin@bu.edu This material is based upon work supported by the National Science Foundation under Grant No. DUE-1625784 Please do not circulate or cite without permission