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UniLink"}],["$","meta","3",{"name":"description","content":"国立志望高3です。場合の数確率を出す大学が多いと思いますが、(わたしの志望校も出してきます。)どうしても少し応用問題になるとよくわからなくなってしまいます。基礎はできるのですが、答えに自信がないのでセンター数1Aはいつも図形と整数で解いています。第一志望の数学の割合は低いので、他の単元で点が取れるように専念したほうがいいでしょうか?それともやはり当日問題ででたら怖いので、きちんと対策しておくべきですか?"}],["$","link","4",{"rel":"icon","href":"/favicon.ico","type":"image/x-icon","sizes":"48x48"}],["$","link","5",{"rel":"icon","href":"/icon.png?2c0dc65a59843333","type":"image/png","sizes":"180x180"}],["$","link","6",{"rel":"apple-touch-icon","href":"/apple-icon.png?2c0dc65a59843333","type":"image/png","sizes":"180x180"}],["$","meta","7",{"name":"next-size-adjust"}]] 1:null 13:I[3903,["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-186819a87df201a3.js"],"ClientInfo"] 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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-186819a87df201a3.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-186819a87df201a3.js"],"AdOnAdviceList1"] 1b:Tf93,その気持ちは非常によくわかります... 特に京大数学は小問も少ないので一つわからなかったらかなり気持ち的に焦りますよね... ただ月並で申し訳ないですが,その対策は本当にたくさんの問題を解いて底力を上げるしかないと思います. 一般的に冠模試と呼ばれるような各予備校が実施している模試は基本的に本番より若干難易度が高いので模試の数学ができなくてもさほど卑下しないで大丈夫だと思います. 自分は京大の過去問を解いた後,各予備校が過去に行った京大模試などの過去問を解いていましたが,それに慣れれば京大数学は若干解ける問題が多い印象でした. 意識することとしては本番を想定してちゃんと時間を測り各年度の問題を6問セットとして解くのがやはり良いのかなと思います.(自分は過去問に関しては25カ年の難易度順に解いていきましたが,模試の過去問は時間を測ってやっていました) 数学で解けない問題があったとき,「ここさえわかればあとはできたのにな!」というポイントとなるような箇所が大体1問につき1つか2つくらいあると思います. たくさん問題を解いていって,解いたすべての問題を覚えることは到底できないので,自分はそういったポイントのみをノートにまとめていって覚えていました. こういう問題のときはこういうパターンの解法があるんだなというそのポイントを確実に覚えておけば問題を解くときの戦う武器も増えて不安も減りますし,自分の知っている解法パターンになければ解かないというような問題の取捨選択にもつながると思います. 特に本番とかは何も考えずに挑んでわからない問題にでくわすとめちゃくちゃ焦るのですが,こういうふうに考えるべきパターンを決めておいてそれを順番にためしていくだけでかなり冷静に問題に対応もできると思います. 例えば整数問題とかでも,この方法やって無理ならこの方法をためす,それでも無理ならこの方法,最終手段は小さい値で例を書いてみて規則性をみつける!というふうに決めておくだけだいぶ心に余裕ができて良いと思います. 整数問題でわからなくなって実験して規則性をみつけるとかは割と当たり前ですが,本番テンパったりするといきなりそういうことができなくなったりするのでちゃんとそういう問題に挑む準備のようなことが大事だと思います. そしてこういうパターンというのが個人的にはそこまで多いわけではないと感じていて,たくさん問題を解いてそのパターンをある程度抽象化すれば大体の問題はとけるようになるし,解けない問題はみんな解けないくらいの感じになる気がしています.こういうパターンで覚えるやり方は一般的にあまりよくないと言われますが,自分は頭が良くなかったのでこうしてましたし合う合わないはあるとおもうので,参考までに! 余談ですが,A判定というのは合格率80%以上ですが,本当によほどのことがない限り落ちないということだと思っています. 自分も最後の模試はA判定で本番に挑み,かなりやらかしたのにもかかわらず結構余裕の点数で受かっていました. 質問者様も一度A判定をとっているということで,このまま普通にやればまあ受かるだろうくらいの気持ちで焦らずに一個一個丁寧に問題解いていったら良いと思います! 頑張ってください! 1d:Tf48,初めまして!慶應大学経済学部A方式に合格したものです。(商学部も受かりました。) 僕は元々東京大学をめざしていたこともあり、数学は比較的得意だったので、アドバイスが出来たら嬉しいです。 慶應大学経済学部の場合、マーク部分(すなわち、第1段階選抜の点数に含まれる)に確率があります。僕自身、確率が非常に苦手で、これといった対策から逃げていましたが、共通テスト、慶應大学本番ではどちらも確率で満点をとることが出来ました。そこで僕が行っていたことについて書いていきたいと思います。(整数は後半で) まず、けんたろうさんが挙げてらっしゃる参考書をやったことがないので、二者択一は僕にはできません(申し訳ないです) しかし、慶應経済の場合確率はカラクリに気付けば一瞬で解けてしまうが、そのカラクリに気付くのが難しいという問題が多いです。そのため、まずは基礎を徹底することが近道だと思います。僕自身先に述べたように確率が非常に苦手応用問題の対策から逃げてしまって東大の本番の確率は解き切る事が出来ませんでした。しかし、基礎だけは見直しておいたおかげで、他の分野に通づるような発想力でカラクリを見抜き、慶應経済の確率は満点を取れたので、基礎固めを行ってください。確率は、自分が何が分からないのかが分からない分野の最たる例だと思っています。そのため、何が自分を出来なくさせているのかをしっかり分析しましょう。アバウトな解答になってしまい、申し訳ないですが、これが一番の近道だと思います。 そして次に整数についてです。受験数学の整数はかなりパターン化されています。つまり、定石をどれだけ知っているかが鍵になっていると思います。東大や一橋の整数は一筋縄には行かない問題が多いですが、それでも次の三つを使いこなせばできるものが多いです。 ①因数分解 ②余りに着目(modを使いこなす) ③範囲を絞る の3つです。 ①の因数分解は、例えばa^2-b^2が素数である、というものでしたら(a-b)(a+b)が素数になるのでa-bかa+bのどちらかが1になるとすぐに分かります。 ②の余りに着目は、例えばN^2であれば3で割ったらあまりは0か1にしかなりません。(試して見てください)これが案外使えます。こんな感じで余りに注目します。 ③の範囲を絞るは、問題の条件から文字式についてどこまでの数を取れるのか、逆にどこまでしかこの文字は動かないのかを精査することで解答を絞れます。 と言った感じで整数はパターンです。これを意識してみてください。 最後に、僕自身、けんたろうさんが言っていたような東大志望の者でした。そして、周りの結果を見てみると、一橋に受かった友達は全員慶應経済に補欠、または不合格でした。それくらい経済学部Aは難易度が高く、クラスの友達にも28人中5~6人ほど理系がいます。そのため、数学は相当力をつけておくべきです。参考書で言えば、文系数学の良問プラチカ位まで必要だと思います。(僕は東大において数学で圧倒するためにその上の上級問題精講まで手を出したました。)ただ、慶應経済の数学の特徴として時間が超絶足りない、終わるわけない、ことが挙げられるので、難易度と同じくらいに解くスピードを意識すると良いと思います。1e:Td3c,京大文学部所属のvenusと申します。よろしくお願いします! ひとまず、数学での失点が致命傷にならないレベルには仕上げたいですよね。 東大受験生レベルとなると、国英社で大きなリードを作ることは簡単ではないです。配点が他の3科目より小さいのに、数学で一番差がつきます。よって、数学が苦手な受験生は、国英社で数学をカバーしつつ、数学でも大きく離されない、という戦略になるでしょう。 数学に関して、私のおすすめは、これまでに出会った問題を全て解けるように復習すること、です。 模試で間違えた・解けなかった問題、参考書でまだ理解が曖昧な問題、etc.。 ※解ける問題の復習は時間の無駄なのでしなくて良いです。 これまでに膨大な量の問題に出会ってきたと思いますが、それらは全て入試本番の問題を解くためのヒントとなり武器となります。 ただし、ここで大事なのは、過去の問題それ自体が解けるかどうかではなく、その問題の本質や考え方を捉えた上で、類題に対して再現性を持って取り組めるかどうか、ということです。なぜその解法を採ったのか、なぜその式変形をしようとしたのか、押さえておくべきポイントはどこで、どういう場合に有効なのか、などを意識すると良いでしょう。 手元にある資源を最大限に有効活用してください。 もう一つは過去問です。冠模試の過去問も良いですね。出来るなら、記述の解答を信頼できる先生に添削してもらうと良いです。 記述では、自分が理解しているということを採点者に理解させなければなりません。そのために、採点者の意見や視点を知ることができる添削は効果があると思います。 なお、ここまで、青チャートレベルの基本は備わっている前提で話を進めています。青チャートのレベルが完璧になっていれば、数学で致命傷を負うことはほぼないと言ってよいでしょう。応用問題も基本の積み重ねです。 他教科にも一応触れておきます。 国語は過去問添削が良いでしょう。数学同様、採点者を想定した解答をする練習です。古典の基本事項はきっちり押さえておきましょう。 英語も添削はしてもらいましょう。英作、和訳、要約など、東大は盛りだくさんですね。 また、本番を想定して、通しで何年分かやってみましょう。東大英語は時間配分が命だと思います。本番での立ち回り方をイメージできるように。 地歴も論述の添削が中心でしょうか。国数英と比べれば、努力が結果につながりやすい科目と言えるので、ぜひ地歴で稼ぎたいところです。 以上、直前期にやると良いかなと思うことを述べてきました。 最後に、何より大切なのは体調管理です。直前期で最大限実力を伸ばし、本番でベストを尽くすために、体調には細心の注意を払ってください。 質問者さんの健闘を祈っています!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=Bz3HG28BTqPwDZPuaiFT","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"}]}]}],["$","h1",null,{"className":"text-xl font-semibold mb-2","children":"場合の数・確率がどうしてもできません"}],["$","div",null,{"className":"flex justify-between mb-4","children":[["$","div",null,{"className":"text-left text-xs text-caption","children":["クリップ(",5,") コメント(",1,")"]}],["$","div",null,{"className":"text-right text-xs text-caption","children":"12/19 10:30"}]]}],["$","div",null,{"className":"coach-mark mb-4","children":"UniLink利用者の80%以上は、難関大学を志望する受験生です。これまでのデータから、偏差値の高いユーザーほど毎日UniLinkアプリを起動することが分かっています。"}],["$","div",null,{"className":"mb-4","children":["$","$L13",null,{"clientImageUrl":null,"clientUserName":"まるまる","infoString":"高3 東京都 一橋大学志望","adviceId":"Bz3HG28BTqPwDZPuaiFT"}]}],["$","div",null,{"className":"mb-8","children":[["$","div",null,{"className":"leading-loose whitespace-pre-wrap","children":[["$","div","consultation-part-0",{"children":[null,"国立志望高3です。\n場合の数確率を出す大学が多いと思いますが、(わたしの志望校も出してきます。)どうしても少し応用問題になるとよくわからなくなってしまいます。基礎はできるのですが、答えに自信がないのでセンター数1Aはいつも図形と整数で解いています。\n第一志望の数学の割合は低いので、他の単元で点が取れるように専念したほうがいいでしょうか?それともやはり当日問題ででたら怖いので、きちんと対策しておくべきですか?"]}]]}],["$","div",null,{"className":"pt-4","children":["$","$L14",null,{}]}],null]}],["$","h1",null,{"className":"text-xl font-semibold mb-2","children":"回答"}],["$","div",null,{"className":"mb-4","children":["$","$L15",null,{"adviserImageUrl":"https://firebasestorage.googleapis.com/v0/b/unilink-48e75.appspot.com/o/images%2Fs_8468FF3766DD4DDFB454F99474AE7741.jpg?alt=media&token=34229fcb-eb18-4d1b-97dd-ce1dd835b119","adviserName":"Lica","adviserDepartment":"京都大学教育学部","adviceId":"Bz3HG28BTqPwDZPuaiFT"}]}],["$","div",null,{"className":"coach-mark mb-4","children":"すべての回答者は、学生証などを使用してUniLinkによって審査された東大・京大・慶應・早稲田・一橋・東工大・旧帝大のいずれかに所属する現役難関大生です。加えて、実際の回答をUniLinkが確認して一定の水準をクリアした合格者だけが登録できる仕組みとなっています。"}],["$","div",null,{"className":"mb-8","children":[["$","div",null,{"className":"leading-loose whitespace-pre-wrap mb-4","children":[["$","div","advice-part-0",{"children":[null,"苦手分野だからといって、捨てることはあまりオススメしません。\n\n残り時間が少ないから、限られた勉強時間でとれる得点を上げるために…と考えたくなるのはよくわかります。選択問題では苦手分野を回避できますが、2次試験では全員に同じ問題が課されます。たとえば、基礎レベルの確率分野の問題でるかもしれません。難易度が高くないなら正答率は高くなるでしょう。ですが、苦手分野だからといって捨てれば、周りとかなり差をつけられてしまいます。ですので、苦手分野であれど、苦手なりに対策しておくことが大切になってくると思います。\n\nたとえばセンターの選択問題で、時間を測るときは図形を選ぶが、あとで確率分野も解いてみる。青チャート等の問題を全て解くのは厳しいけど、このレベルまでは解けるようにしておく。など、苦手なりではあるけれど、対策をしてほしいと思います。少しでもやっときゃよかった…と後悔してるときには遅いので…\n\n残りの期間、頑張ってください。"]}]]}],["$","div",null,{"className":"mb-4","children":["$","$L16",null,{"adviserImageUrl":"https://firebasestorage.googleapis.com/v0/b/unilink-48e75.appspot.com/o/images%2Fs_8468FF3766DD4DDFB454F99474AE7741.jpg?alt=media&token=34229fcb-eb18-4d1b-97dd-ce1dd835b119","adviserName":"Lica","adviserDepartment":"京都大学教育学部","adviceId":"Bz3HG28BTqPwDZPuaiFT","numberOfFan":11,"clipsAvg":7.72972972972973,"adviceRateAvg":4.363636363636363,"profile":"京都大学教育学部(理系)に現役で合格しました。\n高3の5月まで部活に所属。高3から予備校通い。高3の1年間の勉強量は誰にも負けない自信があります。\n現在は、予備校にてチューターとして、受験指導を行なっています。自分の経験や受験指導の経験を生かせたらと思っています。"}]}],["$","div",null,{"children":["$","$L7",null,{"href":"https://ck.jp.ap.valuecommerce.com/servlet/referral?sid=3364577&pid=884970531&vc_url=http%3A%2F%2Fshingakunet.com%2F%3Fvos%3Dnrmnvccp0000100","rel":"nofollow","target":"_blank","children":["$","$L8",null,{"src":"/images/document_request_banner.jpg","width":3660,"height":1500,"sizes":"100vw","style":{"width":"100%","height":"auto"},"alt":"UniLink 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7:17"}]]}],["$","div",null,{"className":"text-xs whitespace-pre-wrap","children":"そうですよね…ご丁寧にありがとうございました!"}]]}]]}]]}]}],["$","h1",null,{"className":"text-xl font-semibold","children":"よく一緒に読まれている人気の回答"}],["$","div",null,{"className":"mb-8","children":["$","div",null,{"className":"divide-y","children":[["$","div",null,{"children":["$","$L7",null,{"href":"/advice/LlsxDWQBp00JfyF5Xfqv","children":["$","div",null,{"className":"flex items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"整数、確率の対策の時期は"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"数学をやるのは不利なのか"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"はじめまして。\n\nまずその不安に立ち向かうより先に、その不安をなくすために手を打つべきかと…つまり、何としても早稲田の対策か国公立の対策かに絞るべきです。\n\n他の方への回答にも書きましたが、早稲田の対策をしながらついでに国公立の対策をするというのは共倒れのリスクが非常に高いです。理由は簡単でセンター対策に時間がかかり3科目に割ける時間が減るからです。文系科目の基礎も固められていないということなので、あなたが数学や他の理系科目をやっている間に周りの私立文系志望者に抜かれて行くというのは漠然とした不安ではなくれっきとした事実となるでしょう…\n\n不安を煽るようなことを言って申し訳ありません。ですが本気で早稲田文学部に行きたいとのことでしたら、何としても親御さんを説得、最悪説得が出来なければ親御さんの意向を無視(心は痛みますが)してでも3科目に絞るべきだと思います。\n\nですが簡単にそれが出来れば今の状況にはなっていませんよね…大変言いにくいのですが、もし、どんなに説得しても聞き入れてもらえず、模試の数学の成績をチェックされるなどして数学をやることを強制、監視され、今持っている不安に押しつぶされるような時が来たら、早稲田を諦めて国公立の対策に専念する方が現実的かも知れません。そうすれば不安も親御さんの圧力も消え去ります。\n\nですが第一志望校の早稲田を諦めたくないですよね。なかなか難しいとは思いますが、受験に向けて余計な不安は無くしておかなければなりません。まずはご両親とよく相談してみてください。"}],["$","div",null,{"className":"flex 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"共テ数学が苦手"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは。まずは勉強お疲れさまです!\n現時点での自分の立ち位置をしっかり分析できている感じが質問文から伝わってきました。本当にすごいと思います!\n\nさて、まずは基礎復習に関してです。\n学力の底上げの意味での総復習は、一旦大丈夫なのかなと推察します。上智経営の数学が85%取れている(ということで合っていますよね…?)なら、ある程度数学力自体はあるのではないでしょうか。\n苦手分野や不安な問題の基礎を鍛えるという意味での復習は、行ってみるといいように思います。あまり数学の問題をたくさん解いているわけではないとのことですが、その中で何か不安な単元や問題はありますか?\nもしあれば、その分野を集中的に基礎復習してみるとよいと思いますし、まだ見つからないならば、復習すべきところを探すという意味で一度軽く全部の単元の基礎問題を解いてみるとよいと思います。\n共通テストの数学で高得点を取るためにはどうしてもミスを減らすことが重要になってきます。そのため、自分がどの単元でミスをしやすいのかということを早めに捉えておくのが大切です。\n\n共通テストの数学は、二次試験などの数学とは性質を異にするということはなんとなく気づいているのではないでしょうか…?共通テストの他の科目と同様に、その科目の学力というよりも情報処理能力を試す内容になっています。\n与えられた空欄に入る適切なものを、短すぎる制限時間内に選ばなければならないという、非常にストレスフルなテストです。\nそのため、数学の基礎事項(解法や公式など)を頭の中で常にスタンバイさせていなければならず、できるだけ苦手や不安な分野が少ないことが望ましいです。\n\n苦手や不安な分野が一通り解消できたら、あとは慣れることで高得点を目指すことになります。先述のとおり共通テストは情報処理能力の試験なので、たくさん過去問を解いて形式に慣れれば点数が上がっていきます。「現役生は秋から伸びる」のからくりは、試験形式に慣れることで爆発的に点が取れるようになるということです。\n\nさて、長々と書いてしまいましたが、結論としては①苦手不安分野を見つけ、それを潰せるような基礎復習をする②共通テスト形式の問題を大量に解いて慣れる、という二段階によって、点数が上がっていくと思います。\n\n受験は体力勝負です。これから秋が深まるにつれて体力的に厳しいことも増えてくるかもしれませんが、あと少しの間頑張ってください!"}],["$","div",null,{"className":"flex 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