Si culpa parva est, magistra poenam gravem non dat.

Si means if. It introduces a condition:

• Si culpa parva est = If the fault is small
• magistra poenam gravem non dat = the teacher does not give a serious punishment

So the whole sentence is a basic if ... then ... idea, even though Latin often does not need a separate word for then.

Culpa is nominative singular.

It is nominative because it is the subject of est:

• culpa parva est = the fault is small

In other words, culpa is the thing being described as parva.

Parva agrees with culpa.

Since culpa is:

• feminine
• singular
• nominative

the adjective must also be:

• feminine
• singular
• nominative

So:

• culpa parva = a small fault

This is a basic Latin rule: adjectives agree with the nouns they describe in gender, number, and case.

Magistra is also nominative singular, and it is the subject of dat.

So in the main clause:

• magistra = the teacher
• dat = gives

Even though English relies heavily on word order, Latin often shows the role of a word through its ending. The -a ending here fits a first-declension nominative singular form.

Latin has no articles. It has no separate words for the or a/an.

So:

• magistra can mean teacher or the teacher
• culpa can mean fault or the fault
• poenam can mean a punishment or the punishment

You decide from the context how best to translate it.

Poenam is accusative singular.

It is accusative because it is the direct object of dat. It is the thing being given:

• magistra poenam dat = the teacher gives a punishment

For a first-declension noun like poena, the accusative singular ending is often -am.

Gravem agrees with poenam.

Since poenam is:

• feminine
• singular
• accusative

the adjective must also be:

• feminine
• singular
• accusative

So:

• poenam gravem = a serious punishment

The dictionary form is gravis, but adjectives change form to match the noun they describe.

Non means not, and it commonly goes directly before the verb it negates.

So:

• non dat = does not give

That is the most straightforward placement here. Latin word order is flexible, but non often appears right before the word or phrase it is negating.

In Latin, adjectives often come after the noun:

• culpa parva
• poenam gravem

That is very normal Latin word order. However, Latin word order is more flexible than English, because endings show grammatical function. An adjective can sometimes come before the noun for emphasis or style, but the noun-plus-adjective order here is completely standard.

In classical Latin prose, est is often expressed when needed, as it is here:

• culpa parva est = the fault is small

Sometimes forms of to be can be omitted, especially in certain styles or contexts, but learners should expect to see est written and should normally include it when composing straightforward sentences.

Both verbs are present tense:

• est = is
• dat = gives

This sentence states a general present condition:

• If the fault is small, the teacher does not give a serious punishment.

It is not talking about one specific past event. It sounds more like a general rule or habit.

Yes. Latin often uses just:

• si
  • condition
• main clause

So:

• Si culpa parva est, magistra poenam gravem non dat.

is fully complete as a conditional sentence.

English sometimes says If ..., then ..., but then is optional there too. Latin usually does not need an equivalent word here.

Often, yes. Because Latin uses endings to show grammatical roles, word order is more flexible than in English.

For example, the following would still be understandable:

• Si parva culpa est, magistra gravem poenam non dat.

The basic meaning stays the same because:

• culpa is still nominative
• poenam is still accusative
• the adjectives still agree with their nouns

However, word order changes can slightly affect emphasis or style. The original sentence is a natural, clear arrangement for a learner.