Hey #education - I bought some photo filters on CreativeMarket a few weeks ago, which means I get their weekly free stuff newsletter. Every week different independent artists post free stuff for you to download and use. It’s basically like Etsy for graphic artists with free samples.
If you want your Powerpoints, classroom posters, etc to look less like Microsoft Word from 1999 and more like you paid someone a ton of money to make them, check out the website. This isn’t an affiliate link; I just think we all need more free stuff.