With Halloween—one of the craziest days of the year in a school—rapidly approaching, many teachers are looking for some fun activities to share with all of the ghosts and goblins that live in their classrooms.

If you’re one of these educators trying to preserve what’s left of your sanity at this time of the year, then check out some really spook-tacular collections of Halloween-themed resources that are sure to creep out your students—in a good way, of course!

Whether it’s writing prompts, science experiments, Halloween candy math, Edgar Allan Poe videos or haunted vocabulary, there’s something ghostly awaiting you below on my recently updated Trick or Tweet greatest hits list:

» The History Channel: The History of Halloween

Bet you didn’t know Halloween is one of America’s favorite holidays, but what’s the real story behind the tricks and treats of Halloween? Find out by exploring this site filled with cool facts, figures, videos and interactives.

» Scholastic: Halloween Trick or Treat for Facts and Fun

Get your classroom in the Halloween spirit with these math and science activities, writing ideas, and crafts. Plus, use the Halloween-themed book lists to find a perfect read-aloud title or scary stories to share with your students for independent reading.

» 7 Halloween Themed Educational Activities

A collection of Halloween-themed games and activities curated by Richard Byrne, author of Free Technology for Teachers—apps, math adventures, safety games, typing activities, a web hunt and more!

» It’s Halloween!

A Pinterest board containing 90+ Halloween sites to celebrate Halloween by Edutopia.

A collection of all things Halloween by Larry Ferlazzo—A visual history, slideshows, vocabulary and spelling games, cloze activities, Halloween Around the World and Mia Cadaver’s Tombstone Timeout, one of the most favorite games found on the BBC site and more!

» Halloween Activities