DRAWING

Hello, I leave you this link so as to practise  exercises:
 VIEWS OF AN OBJECT
In this video you can see how to get the views from an object:



And more about how to get the views:
Getting the views of an object

DIMENSIONING:

TYPES OF DIMENSION USED IN TECHNICA DRAWING

BASIC RULES OF DIMENSIONING

GAmes:

Try this one with blocks:
BLOCKS