Lesson

Thank you for your quick reply. 

I have tested the suggested approach and, unfortunately, it does not appear to work.  The text to the questions and answers does appear in a larger font while being typed out, but after you save the question the text size still displays as being small.  In fact, changing the default font size at Site Administration / Appearance / HTML Editor makes the situation more difficult.  I can no longer manually change the font size to the default font size set at Site Administration / Appearance / HTML Editor.  (I can manually change the font to any other size but the default size which must be why that field is usually left blank.)

Even if this solution did work, it would be very time consuming.  The steps involved in formatting a simple True/False question are as follows:

1. Enter the Page Title, Question, Answers, and Responses.

2. Click on the "Add a Question Page" button.

3. Scroll to the bottom of the Lesson.

4. Click on the Update icon for the question.

5. Click in the "Use editor" box 4 times.

6. Click on the "Redisplay page" button.

7. Manually reformat the Question, two Answers, and two Responses.  Select each text and then click on the desired font size (5 x 2 = 10 steps.)

8. Click on the "Save page" button.

Somewhere, deep in the Moodle theme files, the default font size created by the HTML Editor in Lesson questions must be set.  The question is; where?