On October 8th Google announced that their app Grasshopper, created for students to use to learn to code, now can run in a web browser. The app/site has several courses designed to intuitively help someone build coding skills. Each lesson starts with an introduction to some vocabulary before moving into the coding lessons. Each lesson has a tutorial, a practice activity, and a quiz. You have to successfully complete each lesson before progressing to the next one. Grasshopper will save your work in progress.
For more information visit https://grasshopper.app/ and to start coding today on a Chromebook, Mac or Windows PC, browse to https://learn.grasshopper.app/