best way to implement many to many relationship?

HI ,
What is the best way to implement many to many relationhip in sql server??
Suppose i have two tables teachers and class .
A class can have many teachers and a teacher can teach to many class .
What is the best way to implement this ?

Teacher
teacherid
subject
clasid



Class


Classid
teacherid
teacher name

Is this the best way to implement this ??
Tell me any other way to implement this ??


Rohit Kochar
MCP .Net(Web and SqlServer)
Company : TCS ,Noida

A link table

TeachersClasses

1 to many Teacher to TeachersClasses
many to 1 TeachersClasses to Classes

So the TeachersClasses

Has 2 columns

teacherid
Classid

and the unique key is composite of both columns

Tradeco wholesalers, drop shippers & trade network

If there can be only one teacher teaching the given class, then add the TeacherId to the Class table.<br /><br />If there can be multiple teachers teaching a given class (in parallel or together - doesn't really matter) then add a cross-reference table:<br /><br />Teacher (TeacherId, TeacherName)<br /><br />Class (ClassId, Subject)<br /><br />ClassTeacher (ClassId, TeacherId, &lt<img src='/community/emoticons/emotion-4.gif' alt=';p' />lus other details concerning this teacher teaching this class&gt<img src='/community/emoticons/emotion-5.gif' alt='' />

thanks to all...i think link table is the best solution to my problem..

Rohit Kochar
MCP .Net(Web and SqlServer)
Company : TCS ,Noida