Grammar is often named as a subject difficult to teach. Its technical language and complex rules can be intimidating. Teaching a good grammar lesson is one thing, but what if you're in the middle of a reading or speaking activity and a student has a grammar question? Some students may have studied grammar in their home countries and be surprised that you don't understand, "Does passive voice always need the past participle?" But even if your student's question is simple and jargon-free, explaining grammar is a skill you will need to acquire through practice. If you don't know how to explain it on the spot, write down the specific sentence or structure in question and tell the student you will find out. There are several resources below that can help you understand and explain various grammar issues.