الاستاذة اللي بتدرس اختي منيحة، وشرحها للمادة كتير واضح.

In casual Levantine writing, people often leave out hamzas, especially in texting or informal typing. So الاستاذة is just an informal spelling of الأستاذة.

Both mean the female teacher / the الأستاذة. If you were writing more carefully, الأستاذة would be the standard spelling.

اللي is the colloquial relative word meaning who, that, or which.

So:

• الاستاذة اللي بتدرس اختي = the teacher who teaches my sister

A useful thing to know is that in Levantine, اللي does not change for gender or number. It works for:

• masculine
• feminine
• singular
• plural

That makes it much simpler than formal Arabic relative pronouns.

In Arabic, present-tense to be is usually not stated.

So:

• الاستاذة ... منيحة = the teacher ... is good
• شرحها للمادة كتير واضح = her explanation of the material is very clear

This is completely normal. Arabic only uses an actual was / will be verb when the tense requires it.

In Levantine Arabic, بـ on the verb usually marks the normal present tense, especially habitual or ongoing actions.

So بتدرس means something like:

• she teaches
• she is teaching
• she usually teaches

depending on context.

Here it describes what the teacher does regularly, so بـ is exactly what you would expect.

Here it means teaches.

That can confuse learners because the same root is connected with both studying and teaching. In careful spelling, she teaches would often be written بتدرّس with a shadda. But in informal writing, people often leave the shadda out, so you may see بتدرس.

Context makes the meaning clear here:

• بتدرس اختي = she teaches my sister

If it meant my sister studies, the structure would be different.

Because Arabic often leaves the subject pronoun unspoken when the verb already shows it.

In:

• الاستاذة اللي بتدرس اختي

the verb بتدرس already tells you the subject is she. So there is no need to say هي.

This is very normal in Arabic. An explicit pronoun is usually only added for emphasis or contrast.

اختي means my sister.

It is made from:

• أخت / اخت = sister
• ـي = my

So Arabic shows possession by attaching a suffix directly to the noun.

You can compare:

• اختي = my sister
• اختك = your sister
• اختها = her sister

In this sentence, اختي is the object of بتدرس.

Because it describes الاستاذة, which is feminine.

In Levantine, adjectives agree with the noun they describe. So:

• masculine: منيح
• feminine: منيحة

Since teacher here is a female teacher, the sentence uses منيحة.

شرحها means her explanation.

It is built from:

• شرح = explanation
• ـها = her

So literally:

• شرحها للمادة = her explanation of the material / subject

A very important point: the ـها tells you who the explanation belongs to, but it does not make the noun feminine. The main noun is still شرح.

Because واضح agrees with شرح, not with the person referred to by ـها.

So the structure is:

• شرح = explanation → grammatically masculine
• ـها = her

That means the whole phrase still has شرح as its head noun, and شرح is masculine. So the adjective must be masculine too:

• شرحها ... واضح = her explanation is clear

If the head noun itself were feminine, then the adjective would be feminine.

Here كتير means very.

So:

• كتير واضح = very clear

This is common in Levantine. كتير can mean:

• very before adjectives: كتير حلو = very nice
• a lot / many in other contexts

So learners should not think it only means a lot.

المادة in this kind of context usually means the subject, the course material, or the material being taught.

So:

• شرحها للمادة = her explanation of the subject/material

The لـ here is part of a natural way of expressing what the explanation is connected to. In English we often say explanation of the subject, while Arabic may use a preposition in places where English does not.

So don’t translate it too literally word-for-word; just understand the whole phrase as her explanation of the material/subject.