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17:I[7060,["51","static/chunks/795d4814-03346c8d233b4adb.js","212","static/chunks/212-70508e17017a12c2.js","231","static/chunks/231-5dc9f3acdba63b0c.js","54","static/chunks/54-f848f8ba1c362ca7.js","23","static/chunks/app/advice/%5Bid%5D/page-2c9c2b8245971fa7.js"],"AdUnderAdvice"] 18:I[3194,["51","static/chunks/795d4814-03346c8d233b4adb.js","212","static/chunks/212-70508e17017a12c2.js","231","static/chunks/231-5dc9f3acdba63b0c.js","54","static/chunks/54-f848f8ba1c362ca7.js","23","static/chunks/app/advice/%5Bid%5D/page-2c9c2b8245971fa7.js"],"CommentPostButton"] 19:I[6411,["51","static/chunks/795d4814-03346c8d233b4adb.js","212","static/chunks/212-70508e17017a12c2.js","231","static/chunks/231-5dc9f3acdba63b0c.js","54","static/chunks/54-f848f8ba1c362ca7.js","23","static/chunks/app/advice/%5Bid%5D/page-2c9c2b8245971fa7.js"],"CommentItemAvatar"] 1a:I[6549,["51","static/chunks/795d4814-03346c8d233b4adb.js","212","static/chunks/212-70508e17017a12c2.js","231","static/chunks/231-5dc9f3acdba63b0c.js","54","static/chunks/54-f848f8ba1c362ca7.js","23","static/chunks/app/advice/%5Bid%5D/page-2c9c2b8245971fa7.js"],"CommentItemName"] 1c:I[3866,["51","static/chunks/795d4814-03346c8d233b4adb.js","212","static/chunks/212-70508e17017a12c2.js","231","static/chunks/231-5dc9f3acdba63b0c.js","54","static/chunks/54-f848f8ba1c362ca7.js","23","static/chunks/app/advice/%5Bid%5D/page-2c9c2b8245971fa7.js"],"AdOnAdviceList1"] 1b:Tf6f,はじめまして!一橋大学社会学部のアルデンテといいます。数学が比較的得意だったので、回答させていただきますね! まず、図形問題について触れている限界突破さんは、きっと一橋の傾向をしっかりと分析できているなあと思います。すばらしいです。このまま傾向分析を重視していってほしいです。 図形問題の勉強法についてですが、図形問題に限らず私がどのように数学を得意にしていったかを説明いたします。それが答えになると思いますので、読んでくれましたら幸いです。 私は各単元ごとに数学を得意にしていきました。まずは、確率を得意にして一橋の問題である程度完答できるようになったら、次に整数を得意にして…、という感じです。 具体的なやり方については下のようにやっていました。 ①青チャートやフォーカスゴールドのような網羅系の参考書でひと通り例題を完璧にする。 →このフェーズは一つの単元とはいえ時間がかかると思います。ただ、その単元を得意になって、好きになれるように、頑張りましょう。問題を見て解法の流れが浮かぶなら大丈夫だと思います。 ②例題の間違えたところは何度も復習する。 →例題は、数学の基礎の部分でありながら、例題を完璧にすると大抵の問題は解けるようになります! ③青チャートやフォーカスゴールドに載っているエクササイズやステップアップ問題、巻末問題にチャレンジしてみる。 →例題が完璧になったら、これらの問題にチャレンジしてみましょう。これらの問題は入試問題で構成されています。これらの問題を解ける=一橋の入試をある程度は解ける、ということです。わからない問題があっても30分程度は考えて、それでもわからなければ答えを見るのがいいかなと思います。 ④一橋の入試問題にチャレンジ →トレーニングした単元の問題は解けるようになっていると思います。解けなくてもある程度は解法の選択肢が浮かぶような状態になっていると思います。そうすると勉強のモチベーションにもつながっていきますよね♪ ⑤別の単元の学習に進む →一橋の場合、頻出の単元に偏りがあるので、傾向をしっかりと分析して、頻出順に得意にしていくのがいいでしょう。 そのうえで図形問題に限定して意識してほしいことを書いておきます。参考にしてくだされば幸いです。 ・図形問題は解法が複数ある。 →図形問題と一言でいっても、分野はたくさんありますよね。図形と方程式、ベクトル、図形の性質など…。これらすべてを得意にするのはちょっと大変。僕はその中でも図形の性質の分野が一番難しいと思います!なのでこの分野は勉強しませんでした!図形問題は解法が複数あることが多いでの、この分野の解法を避ければいいのです!僕はベクトルは完璧にしました。 ・正確にイメージすることが大切 →図形問題は問題の文章で見ると「うわっ」っていう気持ちになります。でも実際の図で見てみると、案外こんなもんかと思うことも多々あると思います。まずは、問題文を見てみて嫌がらずに図にかくというところから、やってみるといいと思います。立体の図形で、点が動いたりする場合には、点を頭の中で動かしてみたり、実際にイメージしてみましょう!新たな発見があるかもしれません!2:["$","main",null,{"className":"px-4 pt-4 pb-4","children":["$","div",null,{"className":"max-w-3xl mx-auto w-full","children":[["$","div",null,{"className":"mb-8","children":["$","$L7",null,{"href":"https://unilink-app.onelink.me/isbO/h6xeh63x?advice=rsQOnR7neiTP94aWmEBP","target":"_blank","children":["$","$L8",null,{"src":"/images/web_to_app_banner.jpg","width":3660,"height":1500,"sizes":"100vw","style":{"width":"100%","height":"auto"},"alt":"UniLink WebToAppバナー画像","className":"mb-4 rounded"}]}]}],["$","h1",null,{"className":"text-xl font-semibold mb-2","children":"図形の性質はやらなくていい?"}],["$","div",null,{"className":"flex justify-between mb-4","children":[["$","div",null,{"className":"text-left text-xs text-caption","children":["クリップ(",1,") コメント(",1,")"]}],["$","div",null,{"className":"text-right text-xs text-caption","children":"3/13 7:21"}]]}],["$","div",null,{"className":"coach-mark 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mb-1","children":"東大に落ちて慶應商学部に進学を決めましたが、現役時一橋を目指しており、一橋オープンで全学部合わせて28位(商学部内17位)をとったのでお答えさせていただきます。一橋は本当に図形捨ててもうかります。整数と確率と微積を完璧にできるならですけど。英語が得意でないのなら、英語をオープンで偏差値60弱までに持っていけるとよいです。一橋の英語は時間に余裕があり単語レベルも難しくないので、共通テストで9割ほど取れればそのレベルになると思います。\n\n英語がそのレベルまでいけないのなら、数学に振った方がいいと思うので、どんな問題が来ても焦らないようにするために図形問題もやった方がいいです。本番では選択肢をより多くもっている人が成功します。整数と確率を完答して受かる!と決めているとして、その二つのうち一つが半完の手応えだったら他で取らないといけません。そのときに図形を解けるようにしておけば、選択肢が増えます。そもそも図形が出なくても図形的解釈をすることで簡単に答えを導くことのできる問題が難関大では頻出です。なので数学で稼ぐつもりがないなら捨てていいと思いますが、英語が苦手だったり社会が苦手だったりする場合は捨てるのは望ましくないです。"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 24","className":"text-subPrimary mr-1","children":["$undefined",[["$","path","0",{"fill":"none","d":"M0 0h24v24H0V0z","children":[]}],["$","path","1",{"d":"M12 6c1.1 0 2 .9 2 2s-.9 2-2 2-2-.9-2-2 .9-2 2-2m0 10c2.7 0 5.8 1.29 6 2H6c.23-.72 3.31-2 6-2m0-12C9.79 4 8 5.79 8 8s1.79 4 4 4 4-1.79 4-4-1.79-4-4-4zm0 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"共通テスト数1A 図形の性質を捨てるのはアリか"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは!\n共通テスト数学ⅠAの図形の性質は、序盤でやり方がわからずに大問丸ごと詰んだ、なんてことが起こりますよね、、、。私も経験したことがあります。ただ、捨ててしまうのはよくないと個人的には思います。そこで図形の性質で少しでも点数をとれる方法をご提案させていただこうと思いますので参考にしていただけると幸いです。参考書や勉強法というよりも解いているときの意識をお伝えしたいと思いますので、すぐに実践でき、効果を実感していただけると思います!\n \n1:最後に解く\n苦手な単元に関しては最後に解くのがいいと思います。苦手単元で時間を使いすぎて得意なところで時間不足になってしまったというのが一番もったいないです。マークミスには十分注意して、1→2→4→3の順で解いてみるのはいかがでしょうか。\n\n2:意識しておく定理・公式がある\n図形と方程式で起こりえるのは計算ミスというよりもやり方がわからないということだと思います。「どうやったら思いつくんだよ」みたいなことを答えを見て思うという経験があるとおもいます。共通テスト数学ⅠAにおいては①メネラウスの定理、②角の二等分線と辺の比の公式、③円周角の定理(逆も)、④方べきの定理、この4つのことを常に意識し、どれかを使うかもと準備しておくといいと思います!すべてとは言えませんが、ほぼすべての問題はこれらの定理・公式で半分以上解き進められるようになっています。\n\n3:自分で図を丁寧に描く\n終盤になると序盤で求めた値を使ってさらにメネラウスの定理や円周角の定理などで辺の長さや比を求めるという問題が多いです。問題冊子に書いてある図だけではわかりにくいので自分で大きめに図を描くことを推奨します。ここで私は図をわかりやすくするためにシャープペンシルを使用していました。図をわかりやすく書き、辺や角の値を整理することでやり方を閃く確率が大幅にUPします!\n\n以上3つを意識し実践するだけでかなり変わってくると思います。特に2で挙げた4つの定理・公式の意識は本当に重要だと思います。頑張ってください!!"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 24","className":"text-subPrimary mr-1","children":["$undefined",[["$","path","0",{"fill":"none","d":"M0 0h24v24H0V0z","children":[]}],["$","path","1",{"d":"M12 6c1.1 0 2 .9 2 2s-.9 2-2 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"共通テスト数学"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは、京都大学法学部に通っている者です。自分も特に高校2年生の頃は、青チャートを中心に勉強していたので、お力になれると思い、今回回答させて頂くことにしました。\n\n結論から申し上げますと、他の分野(数列、微積)の勉強をしたからと言って、データ分野の成績はそれほど上がらないと思います。\n\nというのも、データ分析はやってることがかなり特殊で(箱ヒゲ図や分布図の読み取り、中央値や平均値の割り出しなど)、他の分野とのつながりが薄いです。\nですから、データ分野の演習を積まないと、本番では苦戦を強いられると思います。\n\nしかし、データ分野の演習を積まないといけないとは言っても、多くの大学では二次試験にこの分野が出題されることはほとんどありません。(自分の知っている範囲では、一橋大学がたまに出すそうです。それ以外の難関国公立みたいなところは、阪大も含めてほとんど出してないと思います。)\nなので、対策としては共通テストが中心になってきます。\n\nさらに、データ分野は共通テストやセンター試験での出題もある程度パターン化していますし、対策しようと思えば、他の分野と比べて簡単に対策できると思います。具体的には、高校1.2年では忘れない程度に(共通テスト模試の直前に忘れない程度に見返したり、長期休みに学校のテキストの該当分野を解いたり)して、高校3年では、共通テストの過去問演習で問題慣れをするくらいで一旦は十分だと思います。そのやり方で受験前に不安が残っても、本気で復習するのなら、トータル5時間もすればコツが掴める分野だと思います。\n\n少し短めの回答になってしまい申し訳ないですが、自分の回答としては以上になります。自分も青チャート中心の勉強で数学がとても得意になったので、青チャートは信用できる教材だと思っています。数学は正しい努力と比例して成績が伸びる分野なので、是非頑張って、合格を掴んでください。健闘をお祈りします。\n\n"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"京大2次数学"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"青チャートからいきなり二次試験を解いたときにギャップがあるのは自然なことで焦る必要は全く無いです。\n\n実力強化問題集はあまり聞いたことがありませんが少し難しい網羅系のようですね。これはいわゆるインプット系の問題集であって青チャートが完璧であるならば必要無いように感じます。それならば文系プラチカなどで少し難しい問題を実際に解いてインプットしたものを試していく方がいいですよ。そこで予選決勝法などの教科書にのっていないような受験テクニックなどもある程度はカバーできるはずです。\n\n解答を見て納得することも大事ですが自分で最初に思いついた方法で解ききれないか周りの人に質問することも大事だと思います。あくまで解答は最短経路が示されているだけであり解答と違っても自分の考えが間違ってるとは限りません。解説の解法が鮮やかすぎて解けるわけないだろって思う問題に出会うのもよくある話です。\n\n受験数学とは基本的に慣れていけば何とかなるものです。もし全く二次試験に手が動かない場合は実力強化問題集で更に少し難易度の高い類題に触れておくという作戦も有効だと思います。2週もできれば確実に自信につながると思いますし。\n\nこの時期に青チャートが固まっているというのは他の受験生に比べて少なからずリードしてますよ!頑張ってください。"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 24","className":"text-subPrimary 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"青チャート完成度"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは!\n\n私は理系なので求める程度が高いかもしれませんが、青チャートの例題は分野関わらず解けるようにするべきでしょう。何周もやるというより解ければ問題ないとおもいます。数学の完成度がどれくらいか分かりませんが、青チャートの例題レベルはほんとに基礎なのでまずそこがベースとなります。\n\n次に頻出分野の応用力を優先的に着けるようにしましょう。つまり、頻出分野を何周もやるというより、よりハイレベルな問題に沢山触れたほうが良いです。特に整数問題に関しては、青チャートレベルでは対応出来ないこともあるのでいろんな大学の過去問を解いたり、より難しい問題集を解くようにしましょう。\n\nお勧めの難しい問題集を紹介しておきます。\n\n真解法への道1a2b:これは問題集というよりほぼ参考書としても使えます。整数分野や論理分野に強い本で、解説もとても丁寧で突き詰めるところまで突き詰めてるのでおすすめです。大学への数学シリーズの新数学演習などの問題集と平行して使うとよいです。\n\nもうすぐ高校3年生なので高2の春休み入る前に青チャートは全分野完璧にしてください。春休みに一冊難しめの本を買い、応用問題に沢山触れてください。それで足りない知識などがあれば春休み中に埋めましょう。高3の6月までに難しい問題集を完璧に出来れば良い流れで過去問に入っていけると思います。是非頑張ってください!"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"青チャート初学は基本例題だけでも良いのか"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"文系ですが数Ⅲまで分かるのでお答えします\n\n結論から行くと、重要例題は後回しでいいと思います(なので①)。もちろん、最初から重要例題まで手をつけるやり方もありですし、基本だけさらって全体像を掴むという、あなたのやり方もまた合理的だと思います。\n\n数Ⅲの基本事項は数ⅡBの基本事項が完璧ならば理解できます。三角関数の微分は和積の公式を用いて導出します。対数微分法では対数の性質を使って微分します。ざっと考えられる例を挙げててみましたが、和積の公式も対数の性質も教科書に書いてある基本的な事柄ですよね。むしろ、1周目から重要例題に手を出して基本事項をおざなりにして数Ⅲに行く方がよっぽど危険だと思います。\n\nしかしながら、いずれは重要例題まで完璧に解けなくてはなりません。千葉医にせよ、早稲田基幹理工にせよ、重要例題に書いてあることはきちんとマスターしないと、合格点を取ることは不可能に近いでしょう(他の受験生もマスターしてくるからです)。\n\n高2から意識を高く持って勉強に取り組めているようですから、このままキープしていくことが大事です。社会などと違って、理系科目(特に数学)は思考が必要(といっても、パターンを叩き込んで経験値を増やせば、点数は伸びます。ただ、伸びるまでの時間はかかるけど。)とされ、なかなか伸び悩むこともあろうかと思います。しかし、粘り強く取り組み続けてください。\n\n数学についてはかなり出来ているようですから、勉強を続けて全統レベルの問題では満点を狙っていきましょう!駿台模試で高得点を目指せたらなお良いですね。\n\n余談ですが、私も大学1年生ながら数学の入試をたまに解いたり、勉強(主に数Ⅲ)したりしてます。現役時の感覚は数学は残せてるつもりなので(笑)、何かあればお役に立てればと思います!"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 24","className":"text-subPrimary 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mb-1","children":"こんにちは🙌\n現在一橋大学社会学部1年の者です!\n\n\n個人的に、基礎をしっかり固めた上で応用問題に取り組むことが、長い目で見た時の得点アップに最も効果的だと思っています。なので、定着が薄いと感じている部分があるのなら、焦ることなく基礎をやり直すのが大切でしょう。\n\n自分語りになってしまい大変恐縮ですが、私は1年浪人しており現役の時も一橋大学社会学部が第一志望でした。しかし、現役時数学が大の苦手でそのまま克服する事なく受験し得点を稼げませんでした。\n浪人して再び一橋大学社会学部を目指していましたが、数学を基礎からやり直して勉強したことで、根本的な理解が深まり、徐々に難易度の高い問題にも対応できるようになって、最終的に苦手克服することができました。\n\n浪人して時間があるからできることだと思われるかもしれませんが、地道な下積みとも言える基礎の総復習はその後の土台としてとても有効だったと感じています。\n質問者様は現在2年生ということでまだ受験まで時間があるので、身についていないと感じる基礎的部分をしっかりとやり直してみてもいいでしょい。\n\n\nしかし、「定着が薄い」ということの中身が何であるか考慮しなければなりません。それが一部の分野に頻繁に見られるならそこだけ重点的に復習すれば良いですし、全体的にあやふやなら総復習が必要だと思います。\n\nまた、ミスをしてしまう原因が公式や原理の不十分な理解によるのか、それらの道具の使い方に不慣れなことによるのかなどについても考えましょう。\n前者の場合、基礎の復習・確認が必要になりますが、後者は練習問題を繰り返しといて使い慣れていくことが大切です。\n\n\nご自身の「定着していない」と感じる状況が、どのようなものなのか・何が原因なのか一度考えてみるのが良いと思います。\n\n\n再度復習する際、教材は使い慣れたチャートでも構いませんし、解き方をすべて覚えきってしまっている場合は他の教材でも良いと思います(これは他の書き方や着眼点を持った解説を読むことができて良い面もあるでしょう)。ただ、あまり色々な教材に手を出すと、中途半端になってしまい結局何も分からなくなってしまうこともしばしばあるので、「複数の参考書を使う=知識が身についた」と考えるのはやめるようにしましょう。\n\n\nまた何か気になることがありましたら、私でよければお答えします!\n頑張ってください📣"}],["$","div",null,{"className":"flex 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"チャートどうしたらいいか"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"東工大1年生です。大学の通りゴリゴリの理系ですが、青チャートに合格させてもらったと言っても過言ではないので非常に親近感が湧きます。\n\nまず最初に、青チャートはあの分厚さなだけあって、極めればどこの大学にも合格できる代物です。信仰しましょう。\n\nさて、「どこかでミスをしてしまっている」とありますが、どのようなミスの仕方をしているのかによってアドバイスは大きく変わります。\n\n1つ目のパターンとして、単純な計算ミスが多いパターンが考えられます。積分計算で、原始関数までは正しく求められているのに、最後の計算で間違えているというようなパターンです。このパターンの場合は、鉄緑会の基礎力完成という計算テキストをこなすのが一番効果的です。チャートを理解している人にとっては簡単な典型的な計算問題が多数収録されています。最初は計算ミスをしないように時間を気にせず丁寧にやって、2回目はテキストに書いてある目標回答時間に沿って急いでやってみましょう。このテキストをこなしたら、チャートやその他参考書の、テストや模試で出るような形式の問題を、どれだけ時間がかかってもいいので絶対に計算ミスをしないように丁寧にやってみましょう。高2時点では、テストや模試のとき以外は時間を気にして問題を解く必要は全くありません。\n\n2つ目のパターンとして、大まかな解法は浮かんでいるが、その解法が不完全であるパターンです。例えば、軌跡と領域の問題で、X=x+y、Y=xyとおいて計算した後に、x,yの実数条件を確認し忘れている、のようなパターンですね。このパターンの場合は、チャートの問題を、一切回答を見ずに解いてみましょう。そして、模範解答と見比べて、自分の回答に論理的飛躍がないか、論理的な抜けがないかをチェックすることです。\n\n最後に、高校2年生の時点で、時間がないなど考えてはいけません。少なくとも、数学をじっくりやる時間は十分すぎるほど残されています。もちろん安易にチャートをもう一週やればよいと考えるのは愚策ですが、もう一週やる必要があるが、時間が心配だと思うのならば、迷わずチャートをもう一周することをおすすめします。"}],["$","div",null,{"className":"flex 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