When does it have 29 days? Why? Is this a good method or should we do something about it?

February 29 is a date that usually occurs every four years, and is called leap day. Only in this it have 366 days (normally occur in 365 days to end the year).
the is happening because in the information that I searched in Internet is "Our solar year (the time required for Earth to travel once around the Sun) is 365.24219 days.

Our calendar year is either 365 days in non leap years or 366 days in leap years (Feb 29th inserted).

A leap year every 4 years gives us 365.25 days, sending our seasons off course and eventually in the wrong months.

To change .25 days to .24219, we need to skip a few leap days (Feb 29ths) .... century marks not divisible by 400. So with a few calculations tweek the calendar by skipping 3 of 4 century leap years to average out our calendar year to 365.2425, which is pretty darn close to the solar year 365.24219."

for me I think this happening because in the leap day, the earth travel around the sun in 366.24219 day which means that we need to add 1 to balance the day of the year.

this is good because for this we can organize between the astrology and the math and join that together to do not get the mistake in the year, For me this a good choice that makes the astrology.

Feedback about my project

In algebra, we are doing a project.

The project is talking about the planets, the story of the planets, some one.

I choose the Mars because it is very interesting when i found it in the NASA'S information, Originally, mars was the name of the god of war in rome, when the romans scientist discovered the mars, they identified like a blood.

They have some information about the person who live in Mars or called "Aliens". Also they found that the mars have water, so that means, in mars have wind and for this case the Aliens come to that planet.

I founding interesting information to my project, very interesting things. Did you know that mars also have winter? The answer is yes, in the south part of mars do not have any solar radiation that produced cold time and for this case, mars have a winter place such as earth.

I hope that my interesting fact is going to be surprised to my teacher and get a best grade.