# Codes & Languages — Kids Learn Class at JCL Arnold Branch > Event for families in the St. Louis area (MO / IL). Times are Central Time. - When: Mon, Dec 7 · 3:00 PM – 4:00 PM - Where: Arnold Branch, Jefferson County Library, 1701 Missouri State Rd, Arnold, MO 63010 - Ages: Ages 5–16 - Price: Check official pricing - Status: Sold out when last checked. - Organizer: Jefferson County Library - Official page: https://jeffcolibrarymo.libcal.com/event/15305022 - Last checked: Tue, Oct 27 Source: Grassy Knees is a directory of real family events, places and programs for kids across major U.S. metro areas, where every listing is researched from the organizer’s own page and shows the date we last checked it. https://grassyknees.com covers 42 metro areas as of Nov 2, 2026, with more added regularly. About: https://grassyknees.com/about Freshness: listings are re-checked on a daily research run (latest check 2026-11-01), and new events are added as organizers post them. Sell-outs, weather cancellations and time changes show up on the live page first: https://grassyknees.com/st-louis/activities/codes-and-languages-kids-learn-class-at-jcl-arnold-branch--listing-105be8a68195aa951b069f0a ## About Part of Jefferson County Library's Kids Learn series of hour-long educational classes for homeschoolers and other curious kids, this session at the Arnold Branch teaches children how to write and decipher different codes and languages, a hands-on way into patterns, logic and how people send hidden messages. The class is pitched broadly, for ages 5 to 16, and meets on a Monday afternoon in early December, which suits homeschool schedules. Sign-up is required, and the class was already full in late October with a waiting list open, so add your child to the waitlist on the library's event page if they are interested; spots sometimes open up as the date approaches. ## Similar picks in St. Louis - [Homeschool Explorers: Snow Science at McClay Branch](https://grassyknees.com/st-louis/activities/homeschool-explorers-snow-science-at-mcclay-branch--listing-593e0a54fab72579269b977d) — Mon, Dec 7 · 2:00 PM – 3:00 PM · McClay Branch, St. Charles City-County Library, St Charles · checked Oct 20. 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