I had time to think about this subject some more. Probably what best describes my usual initial approach is as follows -
(1) Pick very easy teaching material to start in First Position. For this purpose I use "Tricks to Tunes", Book 1, by Audrey Ackerman, an Australian publication. It only utilises the D and G strings and completes D Major in Third Position near its end.
(2) This book begins with simple notation and then open D string. Here I use the simplest bow hold with thumb outside the frog. It is easiest for drawing the bow at 90 degrees to the top two strings and gives time to set up the sitting or standing position and LH arm height.
(3) The first fingered note in this book is E on the D string and then F sharp, etc, until the D Major scale is slowly built up. Interspersed are nursery songs and simple tunes that use the notes learned so far. So for quite a while the hand is stretching and spacing a whole tone.
(4) To tune this E I first get my beginner to explore the sound of a 5th, using A on the G string and open D. Sometimes I use a pencil mark on the fingerboard so they can see its distance from the open G. Then I say E is beside A and use E to open A string to hear that 5th. I don't use tapes to mark notes - pencil lines are easy to wear off or erase.
(5) All the time I am assessing my student's sensitivity to pitch variations as I start to establish their basic LH shapes. I try to keep their fingers arched even if the youngest kids can't quite comfortably stretch a whole tone.
(6) I do relate new notes back to open D but I don't use it often as a drone. Because they can be both seen and heard I relate F sharp to both D and G, and B to G and D.
(7) When it comes to completing the D scale I start by hearing the octave D accurately, using the 1st. finger with thumb in the base of the neck. I use the sound of the top D to set the pinkie on the same note and then set up the hand shape and smaller spread of fingers. I teach the D scale descending because it is easier than ascending and the hand is returning to a position that they already know. The scale ascending comes later, when they are also using the notes in tunes.
(8) At the end of "Tricks to Tunes" I move across to "I Bags The Bass", Book 3 (First Position) by CHris Belshaw, another Australian teacher. This contains many of the same tunes, has almost no fingerings and includes 2nd. finger notes and playing all the notes across four strings in simple keys.
(9) This is when I might change the bow hold to the more common thumb placement, still not talking much about the finer points of how the right arm should move the bow. That comes later, after First then Half Positions in the Simandl Tutor. Here I also start to talk about shifting and introduce some more repertoire in parallel to avoid boredom.
(10) Students can usually work fairly quickly through the above books. It is not necessary to do every tune in the "I Bags The Bass" book before jumping to Simandl First Position and insisting more on good intonation produced by good LH hand shape and careful string crossings.
I base much of my thoughts and later instruction about intonation on both seeing and hearing the structure of a scale as a concept that is applied to any given starting note. Each Major and minor scale is made up of two tetrachords (literally "four sounds"). I use the metaphor of mentally and physically throwing a succession of bull's eyes with a dart. I don't advocate using metronomes, drones or tuners a lot because I want students to internalise rythm and pitch and not rely heavily on external crutches. Having said that the best external crutches are to play with people who are stronger and more secure than you, or accompaniment by a well tuned piano. They are the ones who suffer while waiting for you to improve!!
I can see the value in singing and "do re me" training but not every beginner comes able to sing in tune or with prior exposure to our nursery tunes (and our Western musical structures in general).
Cheers everyone,
DP