This document provides guidance for teaching kindergarten students about calendars and chronological thinking. It includes definitions of key terms like calendar, day, week, and month. Background information on how calendars are based on astronomical events like the earth's revolution around the sun and the moon's revolution around earth is also presented. The document recommends introducing calendar concepts to students through songs about days of the week and months of the year. It suggests reading a book called "Today is Monday" and engaging students with a calendar activity where they point to dates and identify weekdays and months.