Thank you for this suggestion. I will pass it along to the Dean of the program. The videos were created when the course launched and it would not be something easy to change, however that is a great suggestion to perhaps add this to the textbooks.
This equation can also be found in the resources above as Liza mentioned and are great resources (especially the James Green book) to have on hand for anyone really embarking on medicine making, I still refer to it on occasion myself and I have been engaging in medicine making for 12 years now.
As you work your way through the course, the formulation aspect is discussed on occasion. Some examples are given in the guidebooks Herbal Therapeutics class. This can be found in the Vol 1 ‘Connect and Learn’ book, pages 242 – 334. This will get you a start and idea of how formulas can be made.
For dosage of each herb, one way to think of it is how much of each herb is needed for a sufficient dose within a week.
e.g. a very simple formula of Calendula, Chamomile, Lemon Balm and Rose for nervous digestion support.
Tea: Calendula 15 g
Chamomile 15 g
Lemon Balm 15 g
Rose 10 g This totals 55g and should be consumed within a week, usually this is about 2-3tsp/cup 2x/day.
Calendula 20 mL
Chamomile 20 mL
Lemon Balm 20 mL
Rose 10 mL This totals 70 mL and should be consumed within the week. Meaning 5 mL, 2x/day.
If you wanted it to be stronger (for a larger person or someone who needs higher doses) it could also be
Calendula 30 mL
Chamomile 30 mL
Lemon Balm 30 mL
Rose 15 mL This totals 105 mL and should be consumed within the week. Meaning 7.5 mL, 2x/day.
Or you could make them all equal (the rose could play a stronger part) or you could make any of them lower dose but still within their recommended range. This will be dependant on the person you are working with, their health concerns and energetics etc.
The topic of formulation and dosage is broad and something that you learn more and more about as you study and gain experience.. In courses designed for practitioners this is much more thoroughly discussed.