The five essentials of sailing describes the five key things that a dinghy sailor uses to sail the boat as efficiently as possible. The five essentials are:
Some of the essentials may have alternative names. For example: Course made good may also be known as 'Course Steered'.
A useful mnemonic is "Can This Boat Sail Correctly?" the first letters of which refer to Center/daggerboard, Trim, Balance, Sheet/Sail and Course.