I am using my time off teaching this Easter to work on colour mixing & studies for my own painting progression and as an teaching aid.

The above is my palette with 4 yellows and 4 reds all mixed together to create –
ORANGES, 3 versions: Yellow-Orange, Orange & Red Orange

I want to improve on speed of colour mixing when I paint and having a chart to help me with colour combinations and comparisons at a glance. 
I will do more charts for my other ‘Secondary’ Colours – Violets and Greens.

Colours I used today are:
Cadmium Yellow Pale
Cadmium Yellow 
Cadmium Yellow Deep
Yellow Ochre

Cadmium Red
Burnt Sienna

I used 24 different brushes to do these charts! – Which keeps the colours clean