Ii build and program your own lego mindstorms ev3 robots build and program your own lego vi build and program your own lego mindstorms ev3 robots chapter 5 building the lego education bots 109 color sorter 114 puppy 115 arm 116 expansion models 116 the elephant 117 tank bot 118 znap 119 remote control 119 the stair climber 120 color. Lego