Hi all,
At the risk of becoming wearisome can I just add that my first
PowerPoint was prepared for an audience of children, for which 30 years
as a schoolteacher and teacher-trainer helped a little. The current
version is mainly self-instructional material for *teachers* who need
sound background knowledge about sundials. Every one of Frank King's
points had me nodding vigorously.
A 12 volt car headlamp bulb is on the end of my classroom 'magic wand'
for a brilliant point light source.
Not another word! I promise!
Tony M.
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