Sum column based off of text data

Hello All:

     Quick question that I think will be relatively easy for sum.  I'm pulling in some data and transformed that data to only show me courses that have the "First Grade" name in them.  That way, I can ensure that I'm getting only the first grade courses and which teachers are teaching those courses.  But, I want to sum that so that I can have a Column that will show me Teacher Emily G is teaching 8 first grade courses.  Just to make it easier to get a quick look at what the load is for courses on that teacher.  This is listing out the courses but I need it summed to a total number.  I'm goinng to do the same thing to have a Kindergarten, Second Grade, Third Grade, etc... total columns for each grade.  That way we can see that Emily is teaching 2 Kindergarten courses,  8 First Grade Courses, 0 Second Grade courses, etc... and then a total in sum at the end to show 22 total elementary courses being taught by her.  Thank you!