Scala-IDE doesn’t natively support Scala Build Tool. Let’s not inflict that on beginners. I have found when teaching beginners they love worksheets/playgrounds. The repl quickly gets tedious and when you leave a session and come back you have to start over. I also agree that IntelliJ is a big up front request. What I would prefer doesn’t exist, but maybe it should, which is worksheet support in SBT (or maybe ammonite). It would be great to SBT new playground and get a repl open to playground.sc with two panes, one for coding and one for seeing results of your experiments, without needing an ide.