Why are the dates of Hanukkah different every year?

Tuesday evening, December 12th, is the first night of Hanukkah this year. I think it was much later in December last year. Why isn't it always on the same date? Students look at the Hebrew calendar and appreciate the incredible mathematics involved in creating a calendar that aligns both the moon's rotation about the Earth and the Earth's rotation about the Sun.

The activity: hebrew-calendar2017.pdf

For members we have solutions for this activity below.

hebrew-calendar2017.docx        hebrew-calendar2017-solutions.pdf

CCSS: 5.NBT, 5.OA, 6.SP, 8.SP, S-IC


More Hanukkah activities:

Soda Menorah - Let kids have an opportunity to find the number of 6-packs or cans in this construction and communicate their reasoning to others.  What number of 6-packs might be too small or too large? 3.MD.5, 3.MD.6, 3.MD.74.NBT.5, 5.NBT.5, 7.SP.5, 7.SP.7a

Potato Latkes - Have recipes for these delicious potato pancakes become healthier? Students compare an old latke recipe with a modern recipe and decide how to compare their nutrition facts.  6.RP.A, 7.RP.A, MP.6, MP.8

Share

Leave a Reply