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1b:Tce0,自分は文系プラチカをやっていないので数学一般のことをお伝えしようと思います。

まずテストの点数が取れない要因は、必ずしも学力不足ではないということです。時間ぎれで時終わらなかったとありますが、駿台模試や東大模試、東大本番など難易度の高いテストでは相当優秀でない限りまず解き終わるということはほとんどありません。つまり限られた時間の中で自分の解ける問題を確実に取り切る力が一番大事になってきます。時間切れで解ききれなかった問題の中に自分の解ける問題が含まれているか確認してみてください。きっとあります。ここからは私が実践した得点を最大化する方法をお伝えします。まず数学のテストが始まったら、全ての大問５分ずつくらい目を通して少し解いてみてください。この５分で自分が解けそうな問題を選別し、残りの時間でそれらの問題から優先的に解いていきます。しかし、実際解き進めてみると全然解けないなんてことも大いにあり得ます。その場合はすぐに撤退して他の問題に移ってください。こんな感じで無理そうだなと思ったタイミングで他の問題に移行していきます。（５分以上考えて何も進まなくなった時点で私は他の問題に移っていました。）もちろん後で戻ってきて再び考えます。このように大問をちょっとずつ横に解いていき、周回するイメージです。（拙い日本語でわかりにくくてすみません）これで自分の力が出しきれないという事態は大幅に減るはずです。そのためにも秋以降の過去問演習などで選球眼を養ってください。

チャート式を人に解説できるほどやりこんだのはとても素晴らしいです！
プラチカが定着している感覚がないとのことですが、こちらも同様に人に解説できる状態を目指して取り組んでください。人に解説しようとすると自ずとその問題のエッセンスが見えてくるはずです。
問題を全部覚えるのではなく、エッセンスを追求しましょう。
（エッセンスの具体例：多変数→文字固定　、確率、場合のかず→まず実験するなどなど）

プラチカを夏までに仕上げ、秋以降過去問演習に入るイメージでいいと思いますが、東大模試を受ける前に過去問２年分くらい見ておきたいですね。そこでしっかり時間配分などの作戦を練り夏模試にのぞんでください。

共通テストは私もなかなか解き終わりませんでした。そこでわからなかったらすぐ飛ばし、最後に戻ってくるというルールを設けていました。一つ知っておいて欲しいのは共通テスト数学は簡単な問題も最後の方の難しい問題の配点がおなじということです。難しい問題に時間をかけて簡単な問題を解ききれないということは絶対に無くしましょう。あとは練習あるのみです！頑張れ！1c:T12de,こんにちは！文系数学を得意としていたものです。まず理解しておいた方がいいことは、数学は「波がある」科目だということです。数あるパターンの中から試験に出題されるのはわずか数問ですし、理解していても解法を必ず思いつけるとは限りません。計算ミスもしたくてしている人はいませんし、気をつけても無くならないものです。ですから、1回1回の模試や演習で一喜一憂するのは一番もったいないです。私も数学を得意としていながら、模試で解けなかったり、問題集の問題を初見で解けなくて自身の勉強方法を疑ったことがありましたが、波があるということを理解してからは自身の勉強方法を貫き通しました。おそらく全教科の中で最も安定しない科目であることを理解してください！

　具体的な参考書に関してですが、プラチカはおそらく最良の参考書であると思っています。私もチャートを終わらせて数学が得意と自信がついてきた頃にプラチカを手に取りましたが、4割どころか3割程度しか解けなかったことを覚えています。ですが私は、チャートやフォーカスゴールドがいわゆる「網羅系」と言われるのならば、プラチカも「網羅系」だと感じています。著者もおっしゃっているように、良問とはよく出題される、ということですからある程度の解法パターンは頭に入れておくことが必要です。一橋対策に東大の問題を何問も触れてきましたが、プラチカの類題を何題も見かけたことがありますし、実際にプラチカにも東大の問題が何問も収録されていると思います。saki さんは問題のストックを検討しているようですが、過去問演習に入るためにもプラチカは早急に完成させることをお勧めします。チャートからの接続が難しいので疑心暗鬼になりやすい参考書ですが、網羅系だと思って覚えちゃって構いませんよ！むしろ今後は、プラチカでストックした解法パターンを過去問等で利用、応用していくようになれるといいと思います。

　共テに関しては、正直演習あるのみだと思っています。私自身は熟考型で共テ形式は得意ではありませんでしたが、2次の数学とは別物と考えてとにかく演習を積みました。演習にはとにかく本試・追試がおすすめです。市販の問題集や模試は難易度調整があってない可能性がありますから、、笑。共テの公式サイトで全年度コピーしてひたすら演習するのがいいと思います。演習のポイントはケアレスミスで何点落としたか、どんなミスをしたかを実際に解いた紙に書き込んでおくことです。何十回も演習することになりますから、自分のミスが蓄積され模試や本試験前に見返すことができます。あわよくば2次試験にも応用できるかもしれませんね！

　共テのコツとしては、ショートカットを意識しすぎないことだと思います。落ち着けば解けた問題には何度も出会ったことがあると思いますが、何か共テ特有の近道を探してはいませんか？「時間がない」「高得点を取らなきゃ」という先入観（？）から、数学的ではないことを考えていませんか？とにかく落ち着いて、遠回りしてでも1発で解き切ることを意識してみると得点は伸びるかもしれません。具体的ないコツを探すよりも、ゆっくり解いて感覚を身につけたほうが速いように思います。

　演習のタイミングについては、プラチカを夏までに、共テ演習を夏に徹底的にやる、はいかがでしょうか。共テ対策を早めにやることは冬に楽になることにつながりますから、他科目との相談でもありますが、2次試験対策と並行して進めることをおすすめします（特に慣れが必要な英数）。東大の過去問に関しては、プラチカを終わらせてからで大丈夫です。私はまとまった時間が取れる時に共テ対策、学校があるときは隙間時間に2次対策をするようにしていました。

　結論は、数学は「波がある」科目ですから、「演習するしかない」ということです。経験上、数学は急にできるようになることがありますから自身の勉強を信じてがんばってください。2:["$","main",null,{"className":"px-4 pt-4 pb-4","children":["$","div",null,{"className":"max-w-3xl mx-auto w-full","children":[["$","div",null,{"className":"mb-8","children":["$","$L7",null,{"href":"https://unilink-app.onelink.me/isbO/h6xeh63x?advice=QAtRdbaoDVJJmR6c","target":"_blank","children":["$","$L8",null,{"src":"/images/web_to_app_banner.jpg","width":3660,"height":1500,"sizes":"100vw","style":{"width":"100%","height":"auto"},"alt":"UniLink WebToAppバナー画像","className":"mb-4 rounded"}]}]}],["$","h1",null,{"className":"text-xl font-semibold mb-2","children":"数学マークで8割取れない"}],["$","div",null,{"className":"flex justify-between mb-4","children":[["$","div",null,{"className":"text-left text-xs text-caption","children":["クリップ(",5,") コメント(",1,")"]}],["$","div",null,{"className":"text-right text-xs text-caption","children":"11/13 17:22"}]]}],["$","div",null,{"className":"coach-mark 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"理系プラチカ完答率3割 対策に悩む"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"勉強お疲れ様です！\n私は現在慶應義塾大学の理工学部に通っており、慶應理工は早稲田理工と似たような入試難易度なのでお力添えできると思います！\n\n結論から申し上げると、プラチカをそのまま回していただいて構わないです！\n\n数学は、解法を思いつくまで考えるのではなく、問題のジャンルごとに定型の解法を暗記することが重要です。早稲田レベルになると、青チャートには載っていないテクニックも必要になってきます。\n\n青チャートはあくまで基礎固めなので青チャートの知識だけでは最難関大学の数学に敵わないのは当然です。(だからといって基礎を怠るべきではない)\n\nプラチカは数学の知識、テクニックをつけるための通過点でしかなく、受験勉強の肝は赤本分析なので、3割しか解けなかったからと言って今までの勉強が身についていないというわけではありません。\n\nわからない問題は悩んでも意味がないので、答えを見て解法を理解したら次の問題に進むようにして、問題を解く回数を重ねてください！参考書をしっかりやり込めば問題を見た瞬間に解法が浮かび上がるようになりますよ！\n\nプラチカを回していく中でどうしても苦手な単元や知識の抜けがあると感じた単元を青チャートで復習する、といった感じで進めると良いと思います。\n\nまた、プラチカと青チャートの間を埋める参考書として、一対一の数学、という選択肢もあるので、プラチカがオーバーワークに感じるようでしたら先にこちらを進めると良いと思います。\n\n参考書と並行して、早稲田を中心に横国、慶應、千葉大あたりの赤本を解いて、入試問題の感覚を掴めるようになると良いと思います！\n\n早稲田大学の理工学部は、英語がとにかく難しいので、英語を5割程度に抑えて数学と物化で得点を稼ぐ、といった戦略が有効だと考えます。早稲田の数学は他の私立大学とは異なり記述式の問題が出題されるので、他大の赤本などでしっかり対策していきましょう！\n\n大学受験は赤本をどれだけやり込めるかにかかっています。赤本を解くために必要な知識を、参考書でしっかりつけていきましょう！"}],["$","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":"一橋志望 文系プラチカの正答率が低いが続けるべきか"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは。今年一橋大学の経済学部に受かった者です。私もプラチカを使っていて2002〜2024年までは数学で2〜4完できていたので、参考になればと思い回答させていただきます。\n\n本題ですが、正答率が6割弱であれば個人的には続けて良いと思います。プラチカの難易度で6割程度取れているのならば基礎不足ということは考えられないので自信を持ってもらって大丈夫です。 \n\nですが、単元ごとに正答率を見てみたとき確率、微積、図形と方程式、ベクトルの正答率の中でかなり低くなっているものがある場合は、一橋の入試数学を見てみた上で解けなそうであれば特化した演習を1週間ほどでも行った方がいい気がします。\n逆に上記の全部の単元で正答率が6割弱になってしまっている場合、1番得意にできそうなものに特化した演習を行った方が今後のためになると思います。(ここでの特化した演習とは、専用の参考書を買うかor青チャなどの問題集の応用部分を解くorパスラボなどで問題を拾って解きまくる が有効だと個人的に思います!) \n今年の一橋数学を見てもらったらわかるかもしれないのですが、全問が難しかった場合苦手単元があったり得意単元がないと命取りになっちゃいます🥲\n\n少し路線が逸れてしまいましたが、理想としては10月、11月に一橋の過去問演習をはじめたいです。それに間に合わせるためにもプラチカが早く進みそうなら上記で述べたような演習、もしくは他の大学の過去問を解くなどの工夫をしてみてほしいです。(おすすめは北大、名古屋大、神戸大、新潟大、金沢大等国立大)\nプラチカが早く進まなくてもその進度でどんどん解いていってもらいたいです。\n今からの時期の頑張りで夏休みよりも差がつくと思うので是非時間を有効に使って勉強していってください！\n一橋大学で待ってます。"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 24","className":"text-subPrimary mr-1","children":["$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 10c-2.67 0-8 1.34-8 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items-center py-4","children":[["$","div",null,{"className":"flex-1","children":[["$","div",null,{"className":"mb-1","children":"数学が出来なくなってきていて不安です"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは！数学に関してですね\n私も東大受験をしたので、何点かアドバイスさせていただきます。あくまでも個人的意見です！\n\nプラチカについて、詰まってしまうことがあるなら焦らず原因を考えてみましょう。少し考えれば、この導出方法が浮かばなかったとか、ここの展開が出てこなかったとか何かしら思い当たる節はあるはずです。\nここにもう一度なぜ？と問いかけてみます。例えば、どうしてこの導出方法がでてこないんだろう？のように。基本問題なら出てくる解法でも問題が難しくなると出てこないことがあります。その原因を自分で考えて次回に活かしていきましょう。\n\nおそらく今のsakiさんはやみくもに周回していると思いますが、数学は経験が物を言うので一回一回の問題でしっかり経験値を積んでいくことが重要です。焦らずいきましょう。\n\nまた、論理的な答案が書けないのであれば、模範解答と見比べて足りない部分をみつけその部分が書かれている意義、または自分が書いたが解答にない部分の不必要性を考えることで少しずつ数学力はあがっていきます。\n繰り返しになりますが、数学はやれば伸びるものではないので丁寧かつ効率的にこなしていきます。\n\n\n最後に冠模試で2完1半する力があれば、文三志望としては上出来だと思います。焦って数学に時間を掛けすぎるより、安定する英語に割いたり、地歴を固めたりするのも1つの手です。東大受験はアンパイが最強ですので、大爆死する危険がなくなれば英語、地歴で固めれば合格は確実になります。\n\n科目数も多く大変とは思いますが、1つに囚われることなくステップアップしていってください！"}],["$","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":"阪大にプラチカは必要か"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんにちは！RIZと申します。\nまず阪大文系数学にプラチカは必要かということについてですが、個人的にはあまり必要ないと思います。ただ時間があれば、例えば強化したい分野だけに絞ってやるとかはアリかもしれませんね。しかし模試結果などを踏まえると現状に実力で阪大文系数学には対応できそうなので、つめさんが仰るように苦手な英語に時間を使った方が合格可能性の面から考えれば得策ではないでしょうか。確かに去年の数学はかなり簡単だったので、今年は難しくなると心配な気持ちもわかりますが、もしそうだとしたら周りの受験生もそれほど取れない可能性が高いです。一方で英語は難易度が割と安定しているので、数学に力を入れるあまり英語を疎かにしてしまうと、もし数学があまり上手くいかなかった時、周りの受験生に差をつけられてしまうポイントになってしまいます。そのような事態を避けるためにも、英語に力を入れた方が良いかと思います。\nそれと、もし時間があってプラチカをやる場合、Focus Goldからプラチカの間に「数学モンスター」というサイトでの問題演習を挟むとよいです(そもそも数学モンスターをやればプラチカをやる必要はあまりないかもしれませんが)。数学で大事なポイントを一気にインプットできます。もし興味がありましたら1問だけでも試しに解いて、Youtubeの解説を見てみてください。このサイトも分野別の構成になっているので、頻出分野や自分が強化したい分野に絞ってやるとよいと思います。以上になります。質問などありましたらコメント欄にお願いします！"}],["$","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":"数学の伸び"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"また失礼します\n\n数列と確率が解けないということですが、まず数列に関して 数列は高校数学の分野の中でも難易度が上がるほど見慣れない条件、漸化式がだんだん出てきます つまり現場での【実験】の要素がだいぶんに多いです なのでこれはゆっくり時間をかけて、解説を理解して素養を深めていけば良いでしょう\n\n確率、場合の数は設定は変わってもやっている作業は限られてくるので、この操作なら同様に確からしいからこの式つかう、これは余事象でやったほうがよさそう、これは反復試行などのことはすぐ見抜けるようにし、また自分の解答で何を区別し、何を区別していないか(または全て区別する)を毎回意識しながらやれば段々アウトプットもよくなってきます\n\nまた基礎固めで使っていた問題集、書き出さなくてもいいので問題見て解法を頭の中でいう練習は最後まで続けましょう きちんと書くわけではないので短時間で多くの問題に触れられます 計ゴリ以外の難問は多くの場合基礎固めで用いたパターンの組み合わが複雑だったり文字の条件がごちゃごちゃ入ってきたものになるので、その個別個別は完全に、解説書をかけるレベルまでの理解をお勧めします \nというか各問題の解説を自分で作るのが一番効果的ではあるので、特に理解が不十分である個別の要素が多く含まれてモヤモヤする問題は一寸の箇所にも理解の妥協をせず自分の言葉で解説するのが良いでしょう\n\n頑張ってください🙏\n\n\n\n\n"}],["$","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":[["$","div",null,{"className":"mb-1","children":"文系数学の勉強法について"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"慶應経済のものです。\n自分も数学受験ですのでお答えさせていただきますね。\n\nさていきなりですが、問題を解くときどのように解いていますか？もし、解く→答えを見る→採点する。これだけで終わっているなら伸びるわけがありません。『高校数学は暗記だ』などと言ってる人をたまに見かけますが、基本的に数学は理論です。解くだけではなく理解して初めて身につく力となる学問です。ですから解いて答えを見て採点した後に、じっくりと解説を読んでください。そしてじっくりと読んだ後、解説を見ずにもう一度問題を解いて、解説の解き方を再現できるようにしてください。この一手間を加えるだけでかなり理解度が変わってきます。\n\nそんなのもうやってる！って場合は、焦らないでください。もしこのやり方がきちんと出来ているならば身につかないはずがありません。それはただ問題の練習量がちょっと足りないだけです。でも今の時期からやれば必ず間に合います。だからこそ焦らないでください。精神的な話になってしまいますが、自分はできる、と思い続けることはかなり重要です。もしすぐに点が伸びなくて悩んでしまっても、『きちんとしたやり方でやってるから大丈夫。もう少し頑張れば必ず点は伸びる』と自分を信じてください。焦りや不安は自己嫌悪につながり大変よろしくないです。是非自分を信じてあげてください。\n\n最後に具体的なことになりますが、夏休みには一度自分の志望校の過去問を見ておくといいと思います。自分と志望校の距離が掴めますし、練習とは違った生の問題、本当の試験としての問題を見ておくことは今後の勉強のモチベーションに関しても学力向上に関しても重要です。また、志望校が早慶であるならば、日東駒専あたりの同じ学部、あるいは問題の出題範囲が似ている大学の過去問を解いて行くといいです。難易度が下がりますので志望校よりも簡単に解けるはずです。是非とも頑張ってください。\n\n心から応援しています"}],["$","div",null,{"className":"flex mb-1","children":[["$","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":"理系プラチカ完答率3割 対策に悩む"}],["$","div",null,{"className":"text-xs text-caption line-clamp-2 mb-1","children":"こんばんは。回答失礼します！\n\n1周目ならば結構普通のことだと思います。\n私もフォーカスゴールドの例題をほぼ完璧にしたと感じた後でハイレベル数学1A2Bの完全攻略というプラチカとまあまあ似たレベルの問題集に取り組みましたが1周目の完答率は３割ほどだったと記憶しています。なのでチャートに戻らずそのままプラチカを続けても問題ないと思います。3周ほどすれば自分のものになっていくと思います。\n\n一応参考程度に私がそのレベル帯の問題集を解く際に意識していたことを以下に述べさせていただきます。\n①無理に解答を暗記しにいくのではなく解説を　　　　　　　しっかりと読み込み、書き出したりして自分の理解できる形に落とし込む(解答の流れを掴む感じ)\n②問題の定石を暗記する(例えば図形の問題だったらベクトル、三角比、座標、複素数平面、幾何の5つを思い浮かべる。回転体の体積を求めるときは切ってから回す。整数は必要条件から攻めるなど)\n③分からなくても20分は解答を見ないで考えてみる。いきなり答案を書きにいかない。(世界一わかりやすい京大理系数学という参考書のはじめにから数ページ読むとイメージしやすいと思います。)\n\n何か疑問点等あれば遠慮なくコメントしていただいて大丈夫です！"}],["$","div",null,{"className":"flex mb-1","children":[["$","svg",null,{"stroke":"currentColor","fill":"currentColor","strokeWidth":"0","viewBox":"0 0 24 24","className":"text-subPrimary 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