The most important part of preparing a presentation aid is to

The most important part of preparing a presentation aid is to make a not of the key talking points and then riffing on those points. This will help to keep the matter within the required periphery and also help to get the concentration of the listeners. I hope that this is the answer that has come to your great help.

Day 1: separated light from darkness day 2: skyday 3: land and waterday 4: sun,moon and starsday 5: creatureday 6: man and humanday 7: rested