Its the Same word. The plural of schüler is schüler
German plural forms are formed irregularly.
The plural of "Apfel" in German is "Äpfel".
The plural form for "German" is "Germans."
Kugelschreiber is both the singular and plural.
German shephards.
The plural form of the German word Wohnwand is Wohnwände
The plural of Fach is Fächer.
das Poster (singular) die Poster (plural)
Using the correct title "German shepherd dog" makes easier. The plural is then "German shepherd dogs". They are however incorrectly called "German shepherds"
The German word for and armored vehicle or tank is Panzer. The plural is the same, i.e. also Panzer.
The German word for you is Du (singular, informal), Ihr (plural, informal), Sie(singular and plural, formal)
Apple in German is Apfel.The plural is Äpfel.