The singular form of "cuaderno" is "cuaderno" itself.
Un cuaderno = A notebook
To say 'I have a notebook' in Spanish, you would say 'Tengo un cuaderno.'
tienes un cuaderno?
un cuaderno
It means "its a notebook"
Translation: It's not a notebook.
it means exercise book
To say 'I want a notebook' in Spanish, you would say 'Quiero un cuaderno.'
maria tiene un cuaderno morado.
The word 'cuaderno' is masculine, as in el cuaderno (the notebook).
The phrase means "What are you bringing to class?" Your answer would cepend on the circumstances, perhaps una pluma, un lápiz, un cuaderno, un mochilla, papel, etc.