シャドーイング練習: The Truth About Class Sizes (And Why It Matters) - 動画で英語スピーキングを学ぶ
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When it comes to education, there's one topic that almost everybody has an opinion on.
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Class size.
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Some say it doesn't really matter that great teachers can handle 30 kids just as well as 15.
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Others say smaller is always better.
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So, what's the truth?
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I'm Mike Tenney, and today we're breaking down what the research actually says about class size,
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and more importantly, why it matters so much for your child.
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Let's start with a reality check.
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The average public school class in the U .S has about 24 students.
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In some districts, especially urban and under -resourced areas, that number climbs over 30.
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In contrast, most private schools and alternative education models aim for 10 to 15 students per class.
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So what's the difference?
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Why does it matter?
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Here's the first truth relationships take time.
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A teacher with 30 students has to divide their attention 30 ways.
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That means fewer opportunities for one -to -one instruction,
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fewer emotional check -ins, and a lot more energy spent on managing the group than on deep learning.
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But in a smaller class, something shifts.
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Teachers can spot who's falling behind, who's ready for a challenge, and who just needs a little encouragement that day.
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That kind of attention, it's a game changer.
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And don't just take my word for it, let's look at the research.
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A peer -reviewed study by Blatchford and Russell published in the Economics of Education Review explored how class size impacts student success.
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Their findings?
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Smaller class sizes consistently led to more individual attention, greater engagement, and stronger academic outcomes, especially in the early grades.
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Why?
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Because teachers in small classes spend less time on discipline and more time actually teaching.
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And students are more likely to participate, ask questions, and feel seen.
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That last part matters more than you might think.
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In large classes, it's easy for kids to disappear.
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The quiet ones, the anxious ones, the ones who struggle silently.
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They slip through the cracks not because the teacher doesn't care, but because the structure makes it inevitable.
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Smaller settings change that.
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They pull students back in.
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Here's the second truth.
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Learning is personal.
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No two students learn the same way.
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Some need visuals.
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Others need to talk things out.
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Some take time to process.
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Others are ready to move fast.
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When a teacher is juggling 30 kids, it's almost impossible to personalize learning.
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You teach to the middle and hope for the best.
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But in a class of 10 or 12, you can flex you can adapt, you can actually teach students, not just deliver content.
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And the impact goes beyond academics.
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Smaller classes build community.
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Students form stronger bonds with peers and teachers.
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They feel safer to speak up.
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There's more space for discussion, more room for creativity, and less pressure to conform.
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Now, I know what some people are thinking.
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Isn't this just a luxury?
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And yes, smaller class sizes typically require more resources, more teachers, more classroom, more investment.
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But here's the question we have to ask.
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What are we investing in?
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Because the cost of larger class sizes isn't just academic.
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It's social, it's emotional, and it's long -term.
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When students get less attention, they start to disengage.
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When they disengage, they fall behind.
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And the further behind they get, the harder it is to catch up.
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On the flip side, the benefit of small class sizes compounds over time.
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Students build confidence, they take academic risks, they feel seen supported and capable, that momentum carries forward year after year.
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Blatchford and Russell also found that behavior improves in smaller classes, not just because the kids are better behaved,
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but because teachers can manage proactively, not just reactively.
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Less chaos means more learning.
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It's that simple.
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So, what should parents do with this information?
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First, ask about class size.
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Whether you're looking at public, private, charter, or homeschool pods, don't just ask about curriculum, ask how many students are in a room.
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That number changes everything.
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Second, observe if you can.
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If you're touring a school, ask to see the classrooms in action.
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Watch how the teacher connects.
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Do they know the names?
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Are they giving feedback or just trying to keep order?
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Third, trust your instincts.
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If your child seems disconnected, overwhelmed, or invisible, class size might be playing a bigger role than you realize.
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This isn't just about blaming teachers.
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most are doing their absolute best with what they've got.
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But class size is one of the few levers that we can measure and change.
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And the research is clear, it makes a difference.
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If we want to give our kids the best shot, not just at grades, but at confidence,
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engagement, and growth, then class size is not a small thing.
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It's a big deal.
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At the Tenney School, we've taken the idea of small class sizes to its extreme conclusion.
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One teacher, one student, one personalized learning experience.
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Our model gives students the flexibility to learn at their own pace, faster when they're ready, slower when they need more time.
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It's not about making things easier, it's about making them right for the learner in front of us.
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If you're wondering what personalized education could look like for your child, visit TenneySchool .com to learn more.
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I'm Mike Tenney.
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If this video gave you something to think about, like and subscribe for more insights into how learning really works.
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And if you know another parent wrestling with this decision, share this video with them.
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Because class size isn't a detail, it's a difference maker.
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Thanks for watching and I'll see you on the next one.
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このレッスンの語彙とスピーキングのポイント
このスピーキングレッスンは、動画「The Truth About Class Sizes」を教材にしています。 繰り返し出てくる語は次のとおりです：student, size, teacher, smaller, learning。 この動画には、シャドーイング用の文が92文、単語が928語あります。 音声の長さは5:37です。 話す速さは1分あたり約165語で、日常会話に近い自然なペースです。 単語の86%は英語の頻出3,000語に含まれます。残りは練習の前に確認しておきましょう。
この動画の重要語彙
動画に出てくる覚えておきたい単語15語を、発音と意味つきで紹介します。
| 単語 | 発音 | 意味 |
|---|---|---|
| resource 名詞 | /ɹɪˈzɔːs/ | 資源, 資産 |
| classroom 名詞 | /ˈklɑːsɹʊm/ | 教室, 教場 |
| peer 名詞 | /pɪɹ/ | 同輩 |
| topic 名詞 | /ˈtɑpɪk/ | 話題, テーマ |
| participate 動詞 | /pɑːˈtɪs.ɪ.peɪt/ | 参加する |
| crack 名詞 | /kɹæk/ | ひび, 亀裂 |
| conclusion 名詞 | /kənˈkluːʒən/ | 終わり, 結び |
| connect 動詞 | /kəˈnɛkt/ | 繋げる |
| pace 名詞 | /peɪs/ | 歩幅 |
| luxury 名詞 | /ˈlʌk.ʃə.ɹi/ | 贅沢 |
| feedback 名詞 | /ˈfiːdˌbæk/ | フィードバック, 反応 |
| invest 動詞 | /ɪnˈvɛst/ | 投入する |
| explore 動詞 | /ɪkˈsploɹ/ | 探検する |
| slip 動詞 | /ˈslɪp/ | 滑る |
| chaos 名詞 | /ˈkeɪˌɑs/ | 混沌 |
動画に出てくる句動詞
| 単語 | 意味 |
|---|---|
| fall behind 動詞 | 遅れる |
繰り返し練習したい文
動画に出てくる短く完結した文です。日常会話でそのまま使えます。
- Let's start with a reality check.
- Isn't this just a luxury?
- What are we investing in?
注意したい発音
話し手はisn't, you're, doesn'tなど、短縮形や弱形を18回使っています。聞こえたとおりの短い形で発音しましょう。
- 「sh」と「zh」の音: contrast /kənˈt(ʃ)ɹæst/, conclusion /kənˈkluːʒən/, luxury /ˈlʌk.ʃə.ɹi/, instruction /ɪnˈstɹʌkʃən/, anxious /ˈæŋkʃəs/
- 長い単語（アクセントの位置に注意）: participate /pɑːˈtɪs.ɪ.peɪt/, consistently /kənˈsɪstəntli/, curriculum /kəˈɹɪk.jə.ləm/, importantly /ɪmˈpɔɹ.tənt.li/, invisible /ɪnˈvɪzəb(ə)l/
日本語話者が苦手な音：
- /r/ と /l/ の区別 — /l/ は舌先を歯茎につけ、/r/ はどこにもつけない: classroom /ˈklɑːsɹʊm/, luxury /ˈlʌk.ʃə.ɹi/, explore /ɪkˈsploɹ/, curriculum /kəˈɹɪk.jə.ləm/, importantly /ɪmˈpɔɹ.tənt.li/
- /v/ — /b/ にならないように、上の歯を下唇に当てる: invest /ɪnˈvɛst/, divide /dɪˈvaɪd/, invisible /ɪnˈvɪzəb(ə)l/, inevitable /ɪˈnɛvɪtəbəl/, observe /əbˈzɜːv/
- /f/ — 「フ」ではなく、上の歯と下唇で出す: fewer /ˈfjuː.ɚ/, feedback /ˈfiːdˌbæk/, flip /flɪp/, flexibility /ˌflɛksɪˈbɪlɪti/, flex /flɛks/
この動画での練習方法
- まず声を出さずに動画を最後まで聞き、知らない単語をメモします。
- まず0.75倍速で一文ずつシャドーイングし、慣れてきたら通常の速度に戻します。
- 自分の声を録音して元の音声と比べます。resource, classroom, peerなどの単語に特に注意しましょう。
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。