I claim the ornamental design for a teaching timepiece, as shown and described.
FIG. 1 is a front elevation view of the teaching timepiece showing my new
design; and,
FIG. 2 is a top plan view, the bottom and side edges being identical that
shown.
The rear of the article is flat and unornamented.
The structure depicted by means of broken lines in the drawing figures has
been shown for illustrative purposes only and forms no part of the claimed
design.