In 4th grade, we have been enjoying trying Course 2 of Code.org and as we write lines of code, we are learning vocabulary like algorithm, input, output, programming language, loop, coding, device. What I most love about using Code.org to teach coding is the HABITS OF MIND (executive function) that it promotes. "Try it, make a mistake, try again." I do not have to stand at the front of the room spoon-feeding information and students move at their own pace. Read more on that here.
In 3rd grade, we have enjoyed moving through the online course teaching digital citizenship, online safety, and copyright using DigitalPassport.org.
In 2nd grade, I borrowed an idea from Kevin Jarrett's K4 STEM LAB blog and had them login to a FREE trial of the paid online typing service TypingAgent.com. (This is a sister site of Typing Pal, which is what Kevin Jarrett uses with his students.)
Students enjoyed working through the lessons and activities, IMPROVED their keyboarding skills, and I as a teacher like having the ability to track and monitor their progress over time. (The site records it all.)