Understanding the procedure of DOSH and what exactly makes it one of our melachas.
tearing off plastic tabs on top of cardboard containers;
Introduction to the Concept of עובדא דחול (Uvda d'Chol) in Relation to the Melacha of M'AMER;
Lowering the Strength of a Fan, Dimming the Lights, Lowering the Settings on a Heater or Refrigerator;