I'm looking for information on marking scripts for dramatic emphasis.  Any ideas or sources?  I'm looking for standard notation on marking words to accent, bend the pitch up or down, stretch, etc.

I'm a first year drama teacher with a degree in music.  Give me a break and help me out.  I took voice and diction at IU, but that was eons ago.

There's an article out there, listed on ERIC at the link below, that looks like exactly what you need:

I guess this would be analgous to the markings found in music that tell a musician when to play forte, pianissimo, staccato, ritardando, crescendo, etcetera.  To an extent, this can be helpful. 

But there are differences (yes, more than one) between a score and a script.  Not the least of these is the intent of a character's line.  S/he is often trying to create some change in another character, and it is through the understanding of the line's intent that the delivery comes.  (Rarely does the oboe player try to influence the first violinist's performance.)  I'm not sure there is a notation for that in the books.

I always think of the line "Shut up."  At first glance, this would be said with forcefulness, perhaps even anger.  But if your intent is to get the speaker to stop talking about a topic of secret content, you might say 'shut up' under your breath with a sing-songy 'up'.  Think Ralph Kramden trying to get Norton to not give away their plan to Alice.  There are so many ways just to say 'shut up' depending on the intent.  Also, the "kids today" will say shut up in place of "you're kidding", and it is said with curious disbelief, not anger.

Knowing why are you saying it will make it clear how to say it.