Targeted both active and passive parts of learning. The process happens in 3 moments. In their chosen language, the learner reads, listens or watched the things they're interested in. They capture new words or phrases. They review those words as the system plugs those new words into new content. They then speak those words.
The left of the wireframe is the passive, and the right the active. The top is the bank of words, so they can review their new words & progress.