Read the main points !

as we used to do presentation slides, a good slide is to put main point only and explain to your audiences. Not too crowd with the words, clear and straight forward.

Simplify everything and make it short, like the lecture notes. Some lecturers can talk about 30-45 minutes , 

just for 1-2 slides. and these 1-2 slides maybe only contains 5-10 points or less than 50 words. 

 Here , you can see, when the whole page was being highlight, it means it is a note, but it can be a book too . 

Actually they are all from the book, but we make it into slides. A psychological strategy so that students READ ! 

main points? All are main points , so there is main pointless .