Mimi ninapenda maelezo ya moja kwa moja kutoka kwa mwalimu.

Because Mimi adds emphasis.

In ninapenda, the part ni- already means I, so the sentence could simply be:

Ninapenda maelezo ya moja kwa moja kutoka kwa mwalimu.

Adding Mimi makes it feel more like:

• As for me, I like...
• I personally like...

So Mimi is not required, but it is natural if the speaker wants to sound a little more personal or contrastive.

Ninapenda can be broken down like this:

• ni- = I
• -na- = present tense marker
• penda = like / love

So:

ni + na + penda = ninapenda
= I like / I am liking

In natural English, we usually translate it simply as I like.

Maelezo often means:

• explanations
• details
• information
• sometimes explanation, depending on context

In this sentence, it most naturally means explanations or explanation in a general sense.

A useful thing to know is that maelezo is very commonly used in Swahili even when English might prefer a singular word. So a learner may expect a singular form, but Swahili often uses maelezo naturally here.

Ya is an agreement word that matches maelezo.

Maelezo belongs to noun class 6, and class 6 uses ya as its linking form. This linker can connect a noun to another descriptive idea.

So in:

maelezo ya moja kwa moja

the ya links maelezo with moja kwa moja, giving the sense of:

• direct explanations
• straightforward explanations

Even though ya is often translated as of, here it is better understood as a connector, not as a literal English of.

Moja kwa moja is a common fixed expression meaning:

• direct
• straightforward
• directly
• plainly

In this sentence, it describes the kind of explanations the speaker likes:

maelezo ya moja kwa moja
= direct / straightforward explanations

It is best learned as a set phrase. Its meaning here is idiomatic, not something you should try to translate word-for-word.

Because in Swahili, describing words usually come after the noun, not before it.

So instead of something like:

• direct explanations

Swahili naturally says:

• maelezo ya moja kwa moja

This is normal Swahili word order:
noun first, then the phrase that describes it.

Because kutoka kwa mwalimu means from the teacher, while ya mwalimu would mean the teacher's.

That is an important difference:

• kutoka kwa mwalimu = coming from the teacher
• ya mwalimu = belonging to the teacher / the teacher's

So if you want to emphasize the source of the explanations, kutoka kwa mwalimu is the right choice.

Also, kwa is commonly used with people after words like kutoka.

Because Swahili does not use articles like a, an, or the the way English does.

So:

• mwalimu can mean a teacher or the teacher
• the exact meaning depends on context

In this sentence, English would usually translate it as the teacher because the situation sounds specific.

Yes. You can say:

Ninapenda maelezo ya moja kwa moja kutoka kwa mwalimu.

That is fully correct and very natural.

Using Mimi is optional. It mainly adds:

• emphasis
• contrast
• a sense of as for me...

So both versions are correct, but they have slightly different tones.

It can mean either, depending on context.

• kupenda = to like
• kupenda = to love

In this sentence, like is the better translation, because the speaker is talking about a preference for a certain kind of explanation:

ninapenda maelezo ya moja kwa moja
= I like direct explanations

If the context were emotional or romantic, kupenda could mean love instead.