How can I embed R console in a web page?

I am planning to create interactive R tutorials for my students like Datacamp or Codecademy. (Actually Datacamp is very good but some of my students' English level is not enough so I want to write tutorials in my own language.)

How can I create interactive R tutorials like the ones in Datacamp? i.e. embed an R console to the webpage, where students can answer questions, do the exercises and follow up their progresses.

ps. There is the R package learnr by RStudio but I need to subscribe to R Connect, shinyapps etc. and that exceeds my budget.