TinkerCad Tutorial
TinkerCad is pretty intuitive. There are great tutorials in the startup home page of TinkerCad.
Here is the essentials you need:
Inserting a Geometric Shape, Letters, Numbers
Translating the object.
Rotating the object.
Grouping the object.
Changing the Grid Size
Changing the View/Zoom
A shape can be selected from the menu on the right. There are several shapes, letters, or numbers.
The object can be resized by clicking on the handles(square boxes located at edges and corners.
The object can be moved using the Arrow Keys. Up/Down, Left/Right, COMMAND+UP/Down
The object can be rotated using the arrows at two of the corners.
A hole can be placed that will subtract out an object. Holes and Additional Pieces can both
be selected and grouped to form one object. Grouping Holes will remove part of your piece.
In the bottom right corner is a Grid Size. Changing that will allow you to translate objects at
smaller or larger intervals. This increases your precision.