Smart Study [スマートスタディ]

最短で数学の基礎力をつける方法

これは、高1・高2生に向けた内容です。

もし、あなたが

・今のうちに周りよりも数学で差をつけたい
・早めに教科書範囲をマスターさせたい
・早く応用問題を解けるようになりたい

このように思っているなら、きっとこの記事はあなたのお役に立てると思います。

今日は、数学の基礎力を確実に、そして最短で身につける方法についてお話しします。

その前に…

まず、この記事を読もうとしてくれたあなたに一言伝えたいことがあります。

「おめでとうございます」

なぜ、「おめでとう」?

それは、あなたの判断がとても賢いものであるからです。

実際、

数学の基礎を早めに仕上げることは、その後のあなたの数学力の伸びに大きな影響をもたらします

実際に、進学校の生徒を参考にすると分かりやすいと思います。

灘や開成・桜蔭といった名だたる進学校の生徒はなぜ東大に受かるのか?

もちろん、元々地頭が良かった生徒もいるかもしれませんが、

彼らの基礎力の高さにも原因があると考えられそうです。

彼らの学校では中学3年生の段階で高1で学ぶ数学 I・Aを

高1で高2で学ぶ数学 Ⅱ・Bを修了すると言います。

中3で I・A、高1で Ⅱ・Bを学ぶわけですから

彼らは約2年、受験レベルの数学に時間を使えるわけです。

つまり、彼らは早めに基礎を仕上げているからこそ、東大に合格する確率が高いのです。

非進学校や、地方の高校に通う私たちは

いかに早く基礎をマスターできるか

これが数学における肝になるのです。

では、一体どのように基礎をマスターすれば良いのでしょうか?

基礎の習得にオンライン授業が最適な理由

結論から言ってしまうと、基礎の習得には

オンライン授業で数学を学ぶこと

が最も効果的だと考えます。

何個か利点があるのですが、最も大きな理由は

自分でペース配分を決められることです。

学校や対面の予備校の授業ではカリキュラム(スケジュール)が決まっています。

なので、1年や半年で1周といったように自分でペースを決めることができません。

さらに、苦手部分も得意分野も関係なく同じペースで授業が行われるので、自分に合ったインプットがしにくいというデメリットがあります。

もし、オンラインで自分で進められるのであれば、どんどん先に進めてしまうこともできますし、苦手な部分は何度も視聴し直したりと、自分のペースや得意不得意に合わせた学習ができます。

さらにオンライン授業の良いところは、教える教師の質が高いことにもあります。

東進などのメジャーなオンライン授業はもちろんですが、今ではYoutubeなどでも高品質の授業を無料で受講することができます。(後ほど紹介)

また、オンライン授業では

何が受験にとって重要か教えてくれることも大きな利点の1つです。

特に数学初学の場合、自分で参考書で進めるタイプの人も多いのですが、これはやや危険です。

というのも、自分が重要だと思っている部分と、実際の試験で重要な部分が一致しない場合があるからです。

例えば、数学Ⅱを勉強していて、「パスカルの三角形は重要だな!」と思っていても、実際にはその後の二項定理・多項定理の方が遥かに応用が効きますし、受験にも出ます。

このように初めからどの部分が重要で、どの部分が重要でないかを判断することはほぼ不可能ですし、効率が良いとは言えません。

しかし、プロによるオンライン講義であれば、どの部分が本当に重要かなどを踏まえて講義を受けることができます。

以上の理由から、初学の場合、オンラインの授業を受けるのが最も賢い選択だと私は思います。

オススメのオンライン授業3選

では、具体的にどんなオンライン授業がオススメと言えるのでしょうか?

・東進 高校対応数学 上級

実際に私が受けていたのが東進の通期講座です。とても内容も分かりやすく後に活きる本質的な講義で取って良かったと思えた講座の1つです。高1の10月くらいまでにⅠ・A、Ⅱ・Bを終わらせました。ただし、1講座8万円近くするので、値段は少し親御さんと相談した方がいいかもしれませんね。

無料の授業としてオススメなのは

・ただよび(高校数学全範囲)
https://www.youtube.com/watch?v=jo6lYLMUhEs&list=PLtdcmqO4ps6XJR2rqfJgyHPtWfSzcTmdU

・とある男が授業をしてみた
https://www.youtube.com/c/toaruotokohaichi

です。どちらも分かりやすく、かつ無料で見られるので是非活用されると良いと思います。

まとめると

さて、何度も言いますが、

早めに数学の土台を作っておくこと

これが高1・高2のあなたに取って非常に重要なことです。

早めに土台を作っていくためにも是非オンライン授業を活用して盤石な基礎を築いていってくださいね!

数学の日々の学習に役立ててほしいなと思います。
また読んでいただけたら幸いです。

もし、

・数学の学習法についてもっと詳細を聞きたい
・自分の勉強法が正しいのか不安に感じている
・実際に東大生・東大卒の先輩に勉強の相談をしたい

こんな悩みを抱えているのであれば、

1ヶ月、あなたの勉強を東大生や東大卒の先輩に見てもらいませんか?

Smart Studyでは東大をはじめとする難関大学を志望する高校生・高卒生を対象に

オンラインで、1対1のコーチングを行うことで、あなたの勉強の舵取りをする、そんなサービスです。

もし、少しでも興味があれば、是非公式サイトを覗いてみてくださいね!

覗いてみる

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