InferCabulary is a web-based, research-backed, device-agnostic, K-12, fun, game-based, visual approach for teaching nuanced vocabulary that simultaneously improves students’ critical thinking skills. InferCabulary is the opposite of rote memorization of definitions—they mimic the act of avid readership so students deeply learn words and improve comprehension. Free Services Offered: They are offering 2 months free access and are building a section to offer lessons that can be assigned to students grades 3-9.