1. Adjective Declension in German

2. New terminology: Classic articles: Non-classic articles:
Classic articles are definite and indefinite articles that have a clear indicator as to what the gender is of the noun that follows it. Classic articles also have not been altered from their original form. Ex. der (cl.) becomes den (non cl.)
Non-classic articles are definite and indefinite articles that have been altered from their original form. Ex. When das (cl.) becomes dem (non cl.)

3. Examples of classic and non-classic articles:
Die
Der
Das
Eine
Die (used as plural)
Den
Dem
Der (used as fem. dat. or gen.)
Des
Einen
Einem
Einer
Eines

4. Ein__ großes Fest Notice there’s nothing here!
The word ein has no ending and is neither classic nor non-classic, and it is neither strong nor weak. It is nothing.
Ein__ großes Fest
Notice there’s nothing here!

5. Strong vs. Weak Endings: A strong or weak ending could be on an article or an adjective.
A strong ending gives clear indication of the gender and case of the associated noun. Ex. Der braune Hund. Der lets you know the noun is masculine and in the nominative case. Ex. Stilles Wasser. The –es on the end of Stilles lets you know that Wasser is neuter and nominative.
A weak ending does not give clear indication neither gender nor case. Ex. Der braune Hund. The –e in braune is a weak ending. It does not indicate gender nor case. Ex. In der großen Schule. –en is a weak ending. The der is what indicates feminine and dative. The –en indicates nothing.

6. Weak endings only serve the purpose of maintaining the correct rhythm of a sentence.

7. The word kein has the same rules as the indefinite article, “ein”
Keine Schule
Es spielt keine Rolle
Sie hat keinen blauen Rock gekauft.
Mit keinem gelben Auto

8. All of the possessive articles follow the same rules as the indefinite article “ein” as well.
The possessive articles are:
Mein
Dein
Sein
Ihr
Euer
Unser

9. Zum Beispiel: Tampa ist meine schöne Stadt.
Sie hat sein blaues Hemd geliehen.
Suzi hat bei Karstadt ihren neuen Rock gekauft.
Wir leben in unserem großen Haus.

10. The following words are just like die, der, das:
Dieser, starting a sentence with “this”
Jeder, each
Mancher, starting a sentence with “some”
Solcher, starting a sentence with “such a”
Welcher, which