Threading a needle with a fuzzy thread can be a challenge, especially for children. Make it easy by using a little piece of paper. Fold the thread inside, and push the paper and thread through the eye. Put the folded edge through first.
It's a useful trick for using with many threads that are difficult to get through the eye of the needle. The response of my grandchildren and their cousins when they tried this was "Why didn't I know this before?"
For more tips for threading a needle, click here to see them on the Kreinik blog.