I am a substitute teacher so I use the tools identified in the lesson plans. I did find a resource I would use in a classroom if I was an elementary teacher. The resource is called Fanschool. To the best of my understanding a teacher can create a classroom blog. This is a great asset in practicing keyboarding and use of technology when responding to classroom discussions/topics. This blog site information can be moved with the student to the next grade/class.
I have used Kahoots in the classroom across all grade levels and it seems to be not only fun but an effective means of reinforcing concepts across all subject matter