The sun clock can help the students determine what time it is by putting a pencil in the middle of the clock which will be the hour hand for the clock , and the students can learn about the minutes of the clock so that they can learn how to tell time.

Steampunk- Antique Nautical Brass Pocket String Sundial Compass Necklace For Both Men and Women by CoughingCowNChicken.

Portable Century Replica Working Sundial with Compass / Handmade Sun watch / Walnut Wood & Gift Box

Vertical sundials: a hand crafted wall sundial in enamel, slate, stone or lead adds a touch of magic to your home or garden

Greenwich Royal Observatory Noon Mark - Sundial - Wikipedia, the free encyclopedia

Interesting Sundial Designs