小3 理科 はかって くらべる（はってん）

{"meta":{"grade":"小3","field":"理科","unit":"はかって くらべる","level":"はってん","readAloud":["question","choices","hint","explanation"]},"questions":[{"id":"e3-science-u10-s01c-q01","type":"choice","label":"はかって くらべる","question":"🥣 空の入れものをのせて0gにし、土を入れると65gでした。この数字は？","choices":["土だけの おもさ","空の入れものだけの おもさ","入れものの分をかならずもう一ど引く数"],"hint":"0を 合わせたときを 思い出そう。","explanation":"入れものの分をのぞいて0にしたので、65gは土だけの おもさです。","visual":{"kind":"geometry","showPoints":false,"points":[{"id":"p0_0","x":20,"y":40,"showLabel":false},{"id":"p0_1","x":200,"y":40,"showLabel":false},{"id":"p0_2","x":200,"y":105,"showLabel":false},{"id":"p0_3","x":20,"y":105,"showLabel":false},{"id":"p1_0","x":45,"y":10,"showLabel":false},{"id":"p1_1","x":175,"y":10,"showLabel":false},{"id":"p1_2","x":175,"y":30,"showLabel":false},{"id":"p1_3","x":45,"y":30,"showLabel":false},{"id":"p2_0","x":70,"y":55,"showLabel":false},{"id":"p2_1","x":150,"y":55,"showLabel":false},{"id":"p2_2","x":150,"y":85,"showLabel":false},{"id":"p2_3","x":70,"y":85,"showLabel":false}],"segments":[{"from":"p0_0","to":"p0_1"},{"from":"p0_1","to":"p0_2"},{"from":"p0_2","to":"p0_3"},{"from":"p0_3","to":"p0_0"},{"from":"p1_0","to":"p1_1"},{"from":"p1_1","to":"p1_2"},{"from":"p1_2","to":"p1_3"},{"from":"p1_3","to":"p1_0"},{"from":"p2_0","to":"p2_1"},{"from":"p2_1","to":"p2_2"},{"from":"p2_2","to":"p2_3"},{"from":"p2_3","to":"p2_0"}],"labels":[{"x":110,"y":70,"text":"65g","anchor":"middle"}],"alt":"数字で読むはかり。ひょうじは65g。"}},{"id":"e3-science-u10-s01c-q02","type":"choice","label":"はかって くらべる","question":"⚖️ 同じものを はかるたび つくえをゆらしています。直すには？","choices":["たいらで あんていしたところに おく","さらに つくえをゆらす","毎回 さらを 手でおす"],"hint":"はかりが おちつくじょうけんを そろえよう。","explanation":"あんていしたところで はかり、ゆれがないじょうたいで 読みます。"},{"id":"e3-science-u10-s01c-q03","type":"choice","label":"はかって くらべる","question":"🥣 Aは土だけ70g、Bは土と入れもの80gです。土のおもさだけを くらべるには？","choices":["Bも入れものの分をのぞく","80gのBがかならずおもいとする","数字を同じに 書きかえる"],"hint":"数字が何の おもさかを そろえよう。","explanation":"Bには入れものの分があるので、それをのぞいて 土だけで くらべます。"},{"id":"e3-science-u10-s01c-q04","type":"choice","label":"はかって くらべる","question":"⚖️ じょうげん200gの はかりへ500gのものを のせようとしています。どうする？","choices":["やめて先生と 合うはかりを たしかめる","そのままつよくのせる","さらを手でささえて はかる"],"hint":"どうぐが はかれるはんいを 見よう。","explanation":"じょうげんをこえないようにし、そのおもさを はかれるどうぐを 先生と つかいます。"}]}