How to create and properly name your presentation
Word Art is great to use to title each slide because each slide should have a focused topic
In Google slides you need to add text boxes to your slide. You can edit the text in the slide just like you would in a Google doc. Just remember to select the text (highlight it) first; then you can make changes to text color, font and size.
I like to have an image as a background on the title slide because there's not a lot of text on the title slide. The title slide should grab the viewers attention and the background image and word art can do that. I recommend only using an image as a background on the title slide.
This is an overview of how you slide could look like. Slide 2
Watch this video to learn about how to add images to your slide.