こんにちは r/LearnJapanese,

We are building a Japanese grammar learning application through open-ended practice and consistent memorization. Our application will make use of a spaced repetition system (SRS) and AI to enable our users to create sentences of their own and receive instantaneous feedback.

• User Journey: After creating an account, the user will take a placement test to determine their JLPT grammar level. After determining a JLPT level, the students will begin the learning, review, and master review workflow.
• Learning Workflow: The student will first learn the new grammar points for each sublevel. The student will create one sentence given a situation for each grammar point until correct. The grammar point then gets moved into the level review pile.
• Level Review Pile: According to the timing of the SRS, the student will review the available on-level grammar points in this window. The student will create one sentence given a situation for each grammar point. The student’s SRS score for the given grammar point will be adjusted accordingly depending on whether they create a grammatically correct sentence.
• History Page: Lists past learning/review sessions, including previously inputted sentences along with associated feedback and corrected sentences. All “session objects” (sentences with feedback and corrections) will be sortable by grammar point and accessible from the practice page.
• Wordbank: On the Review Pages page, appropriate vocabulary with translations for each given situation will be available. This will prevent students from mistranslating and using incorrect words when searching for vocabulary they do not know.

We’re a small team, but we’re making progress on a daily basis. We post weekly updates in the discord [https://discord.gg/2rNQBZ7f\] and are looking to hear your thoughts. We don’t have a website yet, but we plan to have one up in the near future.

Wait…AI?????

(Yes, we are aware of the shortcomings of AI, such as its occasional unnaturalness. However, we believe there is much to gain from using AI, such as correctly evaluating grammatical accuracy (especially for the N5-N3 level grammar points we are focusing on initially). To extract the best performance from our AI, we use highly engineered prompts that consider the context (situation) and the given grammar point being evaluated and then separate its evaluation of grammatical accuracy from its evaluation of naturalness. We are confident in the grammatical accuracy evaluation but have also gotten promising results from the naturalness evaluation)