Ca Standard 7.7.5: Describe the Meso-American achievments in mathematics and astronomy, including the developement of the calender and the Meso-American knowlege of seasonal changes to the civilization's agricultural system.
CCSS: RH Reading Standards for Literacy in History/Social Studies 6-12. Grades 6-8 Student #2. Determine the central ideas or information of a primary or secondary source; provide an accurate summery of the source distinct from prior knowlegde or opinion.
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