Questions & Answers about Él es el niño y ella es la niña.
Why do we say el niño but la niña if they both mean "the"?
Why does the first Él have an accent mark, but the second el doesn't?
The accent mark changes the meaning of the word! Él with an accent means "he", while el without an accent means "the" (for masculine nouns). Writing the accent mark is important so people know which one you mean.
What does the squiggly line over the n in niño do?