Looking at this generally, a calendar is a system that is divided over a time period in a definite order. Be it days, months, or years or in other forms of order. Now, if we wish to understand the concept monthly calendar, we must analyze how they were made. The anatomy of mood revolves around the concept of lunation; that is, in which the moon completes a cycle of its phases. The period approximately lasts for 29.5 days. According to many scientists, the moon possessed great significance in determining the cyclic behavior of many marine creatures. Initially, Babylonians used 20 and 30-day months alternately, and then the Egyptians fixed them by making all months into 30 days. Then, the Romans decided in the Julian calendar by using a single 28-day period and others as 30 to 31 days.

These worksheets explain how a calendar is set up and how to read one. Students will learn how to read and use a calendar. They will learn the abbreviations for the days of the week, and how to identify what day of the week a specific date falls on. They will learn how to identify dates on the calendar, and how to find the dates of specified intervals (a week from Friday the 10th, three weeks after the 4th, etc.) All the worksheets include calendars as diagrams. Students will refer to diagrams of calendars to answer questions. This set of worksheets contains step-by-step solutions to sample problems, both simple and more complex problems, a review, and a quiz. It also includes ample worksheets for students to practice independently. When finished with this set of worksheets, students will be able to recognize basic properties of a parabola by studying its equation. These worksheets explain how to use a calendar. Sample problems are solved and practice problems are provided.