Does anyone have any powerpoint classes for mortars?

That's a pretty open-ended question.

Go to Google and put in "mortar training brief .ppt" (drop the quotes of course and experiment with other terms)

Some of the results that might help whatever the heck you're looking for...

https://www.slideshare.net/SerryAlberca/81-mm-mortar
https://www.coursehero.com/file/44179451/01-81MM-60-mm-Mortar-fINALppt/
etc.

SGT (Join to see), I really dislike this type of question. It propagates bad information in the long run. I will explain:

First line leaders (SGTs/ Team Leaders) are the primary instructor for the Soldier assigned to them in Warrior Training Tasks and MOS Skill level 1 tasks and battle drills. Prior to their assignment as a Team Leader, they were a specialist in their MOS. A subject matter expert. Presumably, they went to Basic Leader Course where they learned how to teach everything they mastered.

By utilizing "canned" training, they forget one of the basic principles of training, start at the doctrine and work your way to delivery. Sure, it takes a little bit more time, but you continue to develop your understanding of the tasks and you are 100% guaranteed to get it right. Using a passed-around PP for classroom instruction prevents you from developing your own class and prevents your practical exercises from meshing with the classroom instruction and matching up and linking with a host of other tasks.

If you are interested in mastering your CMF:
DA 2188: Data Sheet
DA 2188-1: LHMBC/MFCS Data Sheet
DA 2399: Computer Record Digital 2408-4
ATTP 3-21.90: Tactical Employment of Mortars Central Army Registry (11C TASKS)
TC 3-20.33: Training and Qualification of Mortars
TC 3-22.90: Mortars
TC 3-22.91: Fire Direction Procedures
STP 7-11C1-SM-TG: MOS 11C Indirect Fire Infantryman Skill Level 1
STP 7-11C24-SM-TG: MOS 11C Indirect Fire Infantryman Skill Levels 2-4
STP 7-11B1-SM-TG: MOS 11B Infantry Skill Level 1
STP 7-11B24-SM-TG: MOS 11B INFANTRY Skill Levels 2-4
FM 3-22.3 - Stryker Gunnery
STP 21-1-SMCT: Soldier's Manual of Common Tasks Warrior Skills Level 1
STP 21-24-SMCT: Soldier's Manual of Common Tasks Warrior Leader Skills
Gunner's Examination Scorecard - Mortars
Company TACSOP (focus on the battle drills)

I created so many blocks of training from Team Leader to Squad Leader for individual and collective tasks that it became second nature to start at doctrine and work from there. Using someone else's PP is a corner that shouldn't be cut and creates a culture of information inbreeding.

I would reach out to Fort Benning to the Infantry Mortar Leaders Course. This will make sure that the information you present is the most current available.