haha ha kodomo no tame ni ringo no kawa wo muite, tiisaku kirimasita.

は marks 母 as the topic of the sentence: As for the mother, ...

That works naturally here because the sentence is describing what the mother did.

If you used 母が, it would put more focus on the mother herself as the one who did the action, as if answering a question like Who peeled the apple?

So:

• 母は = speaking about the mother as the topic
• 母が = emphasizing that the mother is the doer

In a simple narrative sentence like this, は is very natural.

In Japanese, 母 is commonly used when referring to your own mother in a neutral or somewhat formal way, especially when talking about her to someone else.

お母さん is more common:

• when addressing your mother directly
• or when referring to someone else’s mother
• or in casual family-centered speech

So in a textbook-style sentence, 母 is very normal.

Very roughly:

• 母 = my mother / mother in a neutral reference
• お母さん = mom / mother in a warmer or direct form

Here, 子供のために means for the child or for the sake of the child.

It shows the beneficiary or purpose of the mother’s action: she peeled the apple and cut it up for the child.

A useful pattern is:

• N のために = for N, for the sake of N

In some contexts, ために can also mean because of, but here the meaning is clearly for someone’s benefit.

Both can relate to the child, but they mean slightly different things.

• 子供に would simply mark the child as the indirect target, like for the child or to the child
• 子供のために more clearly means for the child’s benefit or for the sake of the child

So 子供のために adds a sense of purpose and care. It fits very naturally with a sentence about a mother preparing food for a child.

Each の links nouns together.

In this sentence:

• 子供のために
  Here の is part of the expression N のために, meaning for N

• りんごの皮
  This means the skin/peel of the apple, or more naturally in English, the apple peel

So の often works like:

• of
• possession
• belonging
• classification

Japanese uses の very often to connect nouns, much more often than English uses of directly.

Both can be said, but they focus on things a little differently.

• りんごをむく = to peel an apple
• りんごの皮をむく = literally to remove the apple’s peel

The sentence uses りんごの皮をむいて, which explicitly mentions the peel. That makes the action a little more concrete: she removed the skin of the apple.

In everyday Japanese, りんごをむく is also very common and natural.

むいて is the て-form of むく, which here means to peel.

So:

• dictionary form: むく
• て-form: むいて

In this sentence, the て-form connects two actions:

1. she peeled the apple
2. she cut it into small pieces

So むいて、切りました means peeled it and cut it.

This is a very common Japanese pattern:

• Verb in て-form + another verb

It links actions in sequence. Here it means the mother did one action and then another:

• 皮をむいて、
• 小さく切りました。

So the flow is:

1. peeled it
2. cut it small

Usually, when verbs are connected this way, the subject is understood to stay the same unless the context changes. So the mother did both actions.

小さい is an い-adjective, and when an い-adjective modifies a verb, it usually changes to -く form.

So:

• 小さい = small
• 小さく = smallly / into a small state when used adverbially

Here, 小さく切りました means cut it small or more natural English, cut it into small pieces.

This is a very important pattern:

• 早い → 早く
• 大きい → 大きく
• 小さい → 小さく

It means cut it into small pieces.

Japanese often expresses this more directly than English. Literally, it is something like cut it small, but natural English would usually be:

• cut it into small pieces
• cut it up small
• cut it into bite-sized pieces

So even though pieces is not stated explicitly, that is the natural meaning.

Yes, the object is understood from context.

The sentence first mentions:

• りんごの皮をむいて

Then it says:

• 小さく切りました

Japanese often leaves out words that are already understood. After peeling the apple, the thing being cut is naturally understood to be the apple.

So even though the object is not repeated, the meaning is:

• She peeled the apple and cut it into small pieces.

Because Japanese often omits repeated information when it is obvious.

If the sentence said everything explicitly, it might sound heavier than necessary. Once the apple has already been introduced, Japanese usually does not need to mention it again.

This kind of omission is extremely common in Japanese and is something English speakers often need time to get used to.

The 、 is a Japanese comma. Here it marks a pause and helps separate the connected actions.

It is especially common in writing when:

• listing actions
• making a sentence easier to read
• showing a slight pause

The grammar would still work without focusing too much on the comma, but it helps the sentence look clearer.

Because the sentence is written in the polite past style.

• 切る = dictionary form
• 切った = plain past
• 切りました = polite past

Since the final verb is polite, the whole sentence has a polite tone. The earlier verb むいて is just in て-form to connect to the final verb.

A plain-style version would be:

• 母は子供のためにりんごの皮をむいて、小さく切った。

A natural breakdown is:

• 母は = as for the mother
• 子供のために = for the child
• りんごの皮を = the apple peel
• むいて、 = peeling
• 小さく = into small pieces / small
• 切りました = cut

So the sentence builds information in this order:

1. topic
2. purpose/beneficiary
3. object
4. first action
5. manner/result
6. final action

This is very typical Japanese word order: details come before the main verb, and the final verb completes the sentence.

皮 can mean skin, peel, rind, or outer layer, depending on the context.

For fruit like an apple, English usually says:

• peel
• sometimes skin

So りんごの皮 is naturally apple peel or the skin of the apple.

Japanese uses 皮 more broadly than English uses any single one of those words.

Yes, very much so.

Even though the sentence does not explicitly say so the child could eat it, that is a very natural implication. The combination of:

• 子供のために
• peeling the apple
• cutting it small

suggests care and preparation for the child.

This is a good example of how Japanese often leaves practical details implied rather than directly stated.