Question: Where can I get school-related clipart?
There are thousands of websites that sell clipart and thousands that offer clipart free as long as you give the website credit when you use the clipart. You'll welcome to use their services.
It's simpler if you use a website that offers free clipart without any restrictions. There are plenty of these as well, and some have good collections of education-related clipart.
Two good ones are:
Use the Search Cliparts box and type some words that describe what you are looking for.
Scoll down the page and click on a category. Don't use the search box on the left