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A year is the length of all $12$ months combined. The year starts on January 1st and ends on December 31st. Once a year, there is a day where we set off fireworks. This day is called New Year’s Eve. This is the day where we celebrate the beginning of a new year and the end of the old year.

Your birthday is once a year – a day you probably love. There is exactly one year between each time it is your birthday.

It is normal to use years to describe our age and our grade level.

Think About This

We can split the year into days. There are $365$ days in a normal year. Every fourth year there is an extra day. That year, there are $366$ days, and we call them leap years. You probably know that February may have $28$ and $29$ days. It is during leap years that February has $29$ days.

We can also split the year into weeks. There are $52$ weeks in a normal year. Some years there are $53$ weeks.

We can split the year in even more ways. We can split the year into four parts, and these four parts are called seasons. The seasons are different, depending on where on the planet you are. A season consists of three months. The seasons in America are: spring, summer, fall and winter.

In the spring, all plants come back to life. The spring consists of these three months: March, April and May.

In the summer, the weather is at its warmest. The summer consists of these three months; June, July and August.

The fall is the season where flowers and trees start to die. The fall months are: September, October and November.

In the end, there is winter. In most countries, these are the coldest months, where snow covers the landscape. The winter months are: December, January and February.

Think About This

A year is, as mentioned, split up into 52 weeks. The weeks do not have names. We use week numbers, as you might have seen on different schedules. You often write, for example, “week $42$”. This means the schedule is valid for the forty-second week of the year. From the week number, you can calculate how many weeks of the year there are left. In this case, how many weeks of the year are there left?

$$\begin{array}{llll}\hfill & 52-\text{currentweeknumber}\phantom{\rule{2em}{0ex}}& \hfill & \phantom{\rule{2em}{0ex}}\\ \hfill & \phantom{\rule{1em}{0ex}}=\text{numberofweeksleft}\phantom{\rule{2em}{0ex}}& \hfill & \phantom{\rule{2em}{0ex}}\end{array}$$

$$52-\text{currentweeknumber}=\text{numberofweeksleft}$$ |

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