A calendar is a system for organizing days for social, religious, commercial, or administrative purposes. It is a method of measuring time and organizing specific periods of time, such as days, weeks, months, and years.
Types of Calendars
There are different types of calendars used around the world, including the Gregorian calendar, the Islamic calendar, the Chinese calendar, and others. Each calendar has its own way of organizing days and months based on cultural, religious, or historical traditions.
Components of a Calendar
A typical calendar includes the following components:
Identifying the days of the week and their order in a calendar.
Learning about leap years and how they affect the calendar.
Exploring different types of calendars used in various cultures and religions.
Studying the history and development of the Gregorian calendar and its impact on the modern world.
By understanding the components, concepts, and history of calendars, you can gain a deeper appreciation for the way time is organized and measured in different societies.
Understand numbers, ways of representing numbers, relationships among numbers, and number systems.
Develop an understanding of large numbers and recognize and appropriately use exponential, scientific, and calculator notation.
Connections to the Grade 8 Focal Points (NCTM)
Number and Operations: Students use exponents and scientific notation to describe very large and very small numbers. They use square roots when they apply the Pythagorean Theorem.