See a picture, recall the Japanese word for it. Before starting, choose whether you want to answer with the kana reading or the kanji spelling (not every word has one — those fall back to kana either way), then how you want to answer: type it yourself, or pick it from a few multiple-choice options.

After you answer, the reading you didn't test (kana or kanji) and the English meaning are shown together, so you build the picture → sound → meaning connection without needing to read English text during the quiz itself.