Curated OER
December Holidays:Create A Comparison Chart
How are Christmas, Chanukah, Kwanzaa, Las Posadas, and Ramadan similar? How are they different? Learners research the different December holiday celebrations around the world and compare the dates, symbols, countries, foods, and stories...
West Contra Costa Unified School District
Arithmetic Series
Fall for a series. Learners determine how to find out how far a skydiver falls in the first 20 seconds. The Algebra II lesson introduces the idea of adding up the terms of an arithmetic sequence. Pupils learn how to use Sigma notation to...