Here is what we got from our friends from La Puente Multilingual Academy, La Puente, California. If you're interested how Halloween is celebrated in Mexico, you're at the right spot :)

In Mexico, we celebrate Dia De Los Muertos instead of Halloween.  This day
is special because we celebrate the loved ones who have died.  It is also
celebrated sometimes in the parts of the USA and parts of Central America.
We decorate the church and we have festivals in the streets.  We go to the
cemetary, clean the grave, and pray to the dead.  After that, we give them
something that they would like.  When children come knocking at the door, we
give them money and candies.

We celebrate Halloween on October 31.  This is a big day.  We wear costumes
that could be a bee, a bear, scary, funny, cow, clown, witch, Barbie,
pirate, pumpkin, little Red Riding Hood ... anything!  On Halloween night,
we go to houses where they give us candy.  Some people have parties.

People celebrate Halloween because it is a tradition to dress up.  It's a
scary day sometimes.  In the evening all the kids go to the houses and ask
for candies.

Some people make altars. (see Dia De Los Muertos above)  Some people make a
decoration from a pumpkin and they put candles inside of the pumpkin and
light them.

Halloween parties are very cool because people dress up with costumes, and
they look very funny. The kids ask for candies at the houses because it's a
tradition in the United States, and the kids collect a lot of candies.
Students come dressed up in costumes to school and they look scary and
funny.

We have parties where we decorate with scary things.  We put up spider webs
and scary monsters.  Some of the candies that we give are lollipops,
chocolates, gummies, etc.  Everyone has to wear a costume and say "Trick or
Treat" to get candies.

People have costume parties and have costume contests.  The Day of the Dead
is like Halloween, but it is celebrated for two days - November 1 and 2.
The first day is for the angels, or dead children, and the second day is the
day for the adults.  We have candies made from sweet potatoes or pumpkin.
We take flowers to the graves.

Some people throw eggs at windows and passing cars.

For the Day of the Dead there are toys and candies made into skull shapes.
We make traditional foods from each town in Mexico and Guatemala.