You may not eat matza after daybreak on the day before the Passover seder: about 13 hours before sunset of the first seder night.

The seder leader says the blessing “ha'motzi” while holding the three (which are now 2 1/2) shmura matzas, drops the bottom one, and says the next blessing, al achilat matza.  Everyone takes a small piece from the two top matzas and eats it, along with enough additional shmura matza to fulfill the minimum requirement.
 

Challa refers to the two loaves of bread (or matza) over which we say the ha'motzi blessing at Shabbat and Jewish festival meals.
The loaves must be:

• Whole, without significant parts missing.
• Made out of one or more of the Five Grains.

Although challa refers to the two loaves of bread (or matza) over which we say the ha'motzi blessing at Shabbat and Jewish festival meals, challa also means the portion of dough or bread that we are obligated to give to the cohen/priests during Temple times.  Today, we burn a token portion (“challa”) of dough.

To eat the koreich:

• Put some bitter herbs on the matza.
• Lean to the left when eating the koreich.

 

Kadeish
U'rchatz
Karpas
Yachatz
Magid
Rachtza
Motzi
Matza
Maror
Koreich
Shulchan Oreich
Tzafun
Bareich
Hallel
Nirtza
 

Bread should never be thrown into trash or garbage. If you have leftover bread (or matza), crumble it and wash it down the sink.  This is not a halacha, it is considered to be good advice.You may also put it next to your compost pile or on top of paper on top of your compost pile.

When we lift up our wine cups at v'hi she'amda and at lefichach, we cover the matza.
Reason So the matza won't feel “embarrassed,” since bread/matza is more important than wine.
 

Every male (13 years old and above) at the seder is required by halacha to lean to the left side while:

• Drinking each of the four cups of wine.
• Eating matza for each of these mitzvot: motzi, matza, koreich, afikoman.

Ideally, lean onto something to your left, such as a chair or couch. A pillow is nice but optional.

If you said birkat ha'mazon at the seder but had forgotten to eat the afikoman, you must:

• Wash your hands,
• Say ha'motzi,
• Eat at least 1.3 fl. oz. (39 ml, or 1/6 cup) of matza,
• Say birkat ha'mazon again, and then
• Drink the third cup of wine.

It is praiseworthy to tell the story of Passover even if you know all the details and interpretations (as did the great rabbis of the Talmud), because of the principle of “in order to remember” (lema'an tizkor): that we should remember everything God did for us when taking us out of Egypt.
The Three Discussion Points
The most important part of the seder is discussing:

• Passover offering (Pesach),
• Unleavened bread (matza), and
• Bitter herbs (maror).

These three segments should be read from the Passover hagada in the Hebrew.  If anyone does not understand the Hebrew, these paragraphs and the concepts they express must be explained in whatever language he or she can understand.
Children at the Seder
Children are an integral part of the seder.  We try to get children to ask questions and then we teach them the answers.  The Torah says to do this!
Acknowledging God's Miracles
We acknowledge God's miracles in sending the plagues against the Egyptians and their gods and in taking the Children of Israel out of slavery and Egypt.
Telling Our History
We tell our history beginning with Jacob (Yaakov) and Laban (Lavan) and on to slavery and, finally, to achieving freedom.
 

We are required to eat two meals on Jewish festivals, each preceded by kiddush, one in the evening and one in the morning. For both meals for each Jewish festival day (and all three meals on Shabbat), say ha'motzi over two complete loaves of bread, each of which is at least 1.3 fl. oz. in volume. 

Source of Saying Jewish Festival Kiddush
Some kiddushes are commanded by the Torah (d'oraita); the others are from Chazal (d'rabanan), as follows:
Kiddush d'Oraita

• First night of Jewish festivals
• Night of seventh day of Passover
• Night of Shmini Atzeret.

Kiddush d'Rabanan

• First day of Jewish festival
• Second night of Jewish festival
• Second day of Jewish festival
• Seventh day of Passover
• Eighth night of Passover
• Eighth day of Passover
• Shmini Atzeret day
• Night and day of Simchat Torah.

Source of Jewish Festival Kiddush Location
Saying Jewish festival kiddush at the place where you will eat your meal is a rabbinical (d'rabanan) enactment.
Jewish Festival Kiddush-Meal Quantities: Evening

• For evening kiddush for a first-night (d'oraita) Jewish festival, a minimum of 4 fl. oz. (119 ml) of wine must be blessed on and at least half must be drunk.
• For evening kiddush for a second-night (d'rabanan) Jewish festival, a minimum of 3.3 fl. oz. (99 ml) of wine must be blessed on and at least 2.0 fl. oz. must be drunk.
• For the evening meal, as on the first two Shabbat meals and for all required Jewish festival meals, a minimum of 1.9 fl. oz. (56 ml) of bread must be eaten within four minutes.

Eating Requirements for Jewish Festival Morning Kiddush
There are two separate eating requirements during the daytime. They may be combined (say/hear kiddush and start the main meal right away) but are often done separately (say/hear kiddush and then eat some light foods and beverages; the main meal is eaten later in the day).
Note Since eating and drinking requirements on all morning kiddushes (both Shabbat and Jewish festivals) are d'rabanan, the required beverage amount for morning kiddush is only 3.3 fl. oz. (99 ml) instead of the d'oraita 4 fl. oz. (119 ml) (which is required for kiddushes for Shabbat evening and all first-night Jewish festivals).

• Morning kiddush requires a halachically legal “meal” with these elements:
  • Blessing on a minimum of 3.3 fl. oz. (99 ml) of wine (or other beverage),
  • Someone's drinking at least half the beverage, followed by
  • Eating at least 1.3 fl. oz. (39 ml, or 1/6 cup) of some type of mezonot within four minutes. 
    Note If you drink at least 3.3 fl. oz. (99 ml) of wine within 30 seconds, you do not need to eat mezonot.
    Note You do not need to drink the wine or other kiddush beverage to fulfill “establishing a meal.” You may hear kiddush and then simply eat the required amount of bread or mezonot. This applies to Shabbat or Jewish festivals, evening or morning.
     

 

• The real meal (kovei'a se'uda) requires eating at least 1.9 fl. oz. (56 ml) of bread (or matza during Passover!) within four minutes. It must include enough food to satiate. 
  Note You can simultaneously fulfill the requirement to “establish a meal” and to “eat a meal” by eating one (the same) piece of bread.

K'zayit is variously defined as being the volume of 1/3, ½, or 1 whole egg; 0.6 - 1.9 fl. oz. (18-56 ml), depending on the application.

• K'zayit for Seder Matza and Afikoman:  1.9 fl. oz. (56 ml) of matza.
• K'zayit for Bracha Achrona and Birkat HaMazon: 1.3 fl. oz. (39 ml, or 1/6 cup) of solid food.

Beitza, K'Beitza = 1.9 fl. oz. (56 ml); an egg size by definition.

In addition to prayer obligations (see Women: Minimal Prayer), women and girls 12 years old and up are required to keep these time-dependent positive commandments, among others:

• Candle-lighting for Chanuka (see Chanuka: Candles: Who Should Light )
• Candle-lighting for Shabbat, Jewish festivals, Rosh Hashana, and Yom Kippur.
• Havdala (say or hear) after Shabbat, Jewish festivals, Rosh Hashana, and Yom Kippur.
• Kiddush (say or hear) on the first night (or first two nights outside Eretz Yisrael) of every Jewish festival, and also the next morning.
• Passover (all commandments, including eating matza at the Passover seder).
  Note Because she must eat matza, she must therefore say birkat ha'mazon afterward (so if a woman omits ya'ale v'yavo in birkat ha'mazon at the seder, she must repeat birkat ha'mazon!).
• Megila on Purim.
• Shabbat (For why women must keep time-dependent, positive commandments on Shabbat, see Introduction to Shabbat )
• Shofar on Rosh Hashana.
  Note Jewish women universally accepted upon themselves to hear shofar on Rosh Hashana, but they only need to hear 30 blasts.
• Hearing the reading of Parashat Zachor.

Almost all mitzvot may be enhanced by:

• Making them beautiful (hidur mitzva), or
• Observing non-required stringencies (mehadrin).