Onshape, computer aided design, relevant knowledge topics

1. linear sequencing of critical subject topics

2. 2D sketching

2.1. Basic commands

2.1.1. basic geometry

2.1.1.1. Coordinate systems

2.1.1.1.1. Dimensioning

3. 3D modelling

3.1. Default sketch planes

3.1.1. Creating sketch planes on model surfaces

3.1.1.1. Solid modelling

3.1.1.1.1. Use of patterns to create 3D models

4. Technical Drawing

4.1. orthographic projections

4.1.1. isometric projections

4.1.1.1. Basic drawing construction and methodology

4.1.1.1.1. BS 8888