This app is not appropriate for first graders. I purchased this to help with inflectional endings. You cannot isolate an ending, but instead must be instructed on -s, -ing, and -ed. That is way too much for a first grader to take in. Plus on the second sample there is an irregular verb and the user is told “goed” is not a word. How confusing! It would be best to use only regular verbs at first to illustrate the concept. The controls for this section were also not intuitive. I was about to delete the app, but decided to try another section. This was on reading CVC words. There was a cute idea, to form your own words using the CVC pattern. Unfortunately there was no feedback on whether I had formed a real world. For example, I made “ron” and no feedback was given. The app should not allow wrong words to be formed in this exercise. In general the app is not thought out, moves too quickly for first graders, and seems homemade.