

かねが鳴る前に、教室に入ってください。
今鳴ったかねは何の合図ですか。
昔の学校では、かねを鳴らして授業を始めていたそうです。
"かね(鐘)" is in the lesson "Classroom" (Level 9), along with 10 other useful words. LinDuo has 180 topic lessons like this one, 2,379 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.