La instruistino klarigas la eraron kaj montras la ĝustan respondon sur la tabulo.

Instruistino means female teacher.

• instruisto = teacher
• -in- = female
• instruistino = female teacher

Esperanto often builds words this way:

• patro = father
• patrino = mother
• kato = cat
• katino = female cat

So this sentence specifically tells you the teacher is a woman.

La is the definite article, meaning the.

In this sentence:

• la instruistino = the teacher
• la eraron = the mistake
• la ĝustan respondon = the correct answer
• la tabulo = the board

Unlike English, Esperanto has only one article: la. It does not change for gender, number, or case.

The -n ending marks the direct object in Esperanto. That is, it shows what is being explained or shown.

Here:

• klarigas la eraron = explains the mistake
• montras la ĝustan respondon = shows the correct answer

The teacher is doing the action, and the mistake/answer receive the action, so they take -n.

This is called the accusative ending.

Because adjectives must agree with the nouns they describe.

• respondo = answer
• ĝusta respondo = a correct answer
• la ĝustan respondon = the correct answer

Since respondon has:

• -o for noun
• -n for direct object

the adjective must match:

• ĝusta → ĝustan

So both words show the same grammatical role:

• ĝustan respondon

Klarigas is the present-tense verb form.

• klarigi = to explain, to make clear
• -as = present tense

So:

• klarigas = explains / is explaining

In Esperanto, all present-tense verbs end in -as, regardless of the subject:

• mi klarigas = I explain
• vi klarigas = you explain
• ŝi klarigas = she explains

There is no verb change like English explain/explains.

This is completely normal. One subject can do multiple actions.

Here the subject is la instruistino, and she does two things:

1. klarigas la eraron
2. montras la ĝustan respondon sur la tabulo

They are joined by kaj, which means and.

So the structure is:

• The teacher explains the mistake and shows the correct answer on the board.

Kaj means and. It connects the two verb phrases:

• klarigas la eraron
• montras la ĝustan respondon sur la tabulo

So kaj tells you the same person is performing both actions.

Sur la tabulo means on the board.

• sur = on
• la tabulo = the board

So the phrase tells you where the correct answer is being shown.

In a classroom context, tabulo usually means a board for writing, such as a blackboard or whiteboard.

Because tabulo is not the direct object here. It is part of a prepositional phrase:

• sur la tabulo = on the board

Prepositions like sur normally take a noun without -n.

So:

• montras la ĝustan respondon → direct object, so respondon
• sur la tabulo → location after a preposition, so tabulo

A learner may later meet cases where -n appears after a preposition to show movement toward something, but that is not what is happening here.

Yes, Esperanto word order is fairly flexible because the -n ending helps show grammatical roles.

The normal order here is very natural:

• La instruistino klarigas la eraron kaj montras la ĝustan respondon sur la tabulo.

But some variations are still understandable, for example:

• La eraron la instruistino klarigas.
• La ĝustan respondon la instruistino montras sur la tabulo.

Even so, beginners should usually prefer the straightforward order: subject + verb + object.

Because the subject noun is already stated: la instruistino.

Once the sentence names the subject, Esperanto does not need a pronoun. English works the same way:

• The teacher explains... not
• The teacher she explains...

If you wanted to replace the noun with a pronoun, you could say:

• Ŝi klarigas la eraron kaj montras la ĝustan respondon sur la tabulo. = She explains the mistake and shows the correct answer on the board.

Yes, that is a helpful way to understand it.

• klara = clear
• klarigi = to make clear, to explain

The ending -ig- often gives the idea to cause/make someone or something become something.

So klarigi is built very logically:

• clear → make clear → explain

This kind of word-building is very common in Esperanto.

A useful breakdown is:

• La instruistino = subject
• klarigas = first verb
• la eraron = first direct object
• kaj = and
• montras = second verb
• la ĝustan respondon = second direct object
• sur la tabulo = location phrase

So the pattern is:

subject + verb + object + and + verb + object + place

This is a very common and natural sentence pattern in Esperanto.