Hello,

Visual Materials includes PPT,Graphs,Charts,images or videos which means a representation which doesn't involves sentence.  To do that you have to gather the data chart or sheets over a period. Then categorize them then decide how you will make it, which way will be fit well to represent. Mostly it goes with graphs but you can do it over charts too.

On the part of arithmetic you have to write it in word file then transport it in PPT if your PPT doesn't support special characters.

Hope it helps!