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原田英語の時事英語ジュニア|英語ニュース ワークシート(中学生レベル)

Class ____ No. ____ Name ____________________

数学が苦手なのはなぜ?算数障害の子は「解き方の切りかえ」に時間 68人の研究

Changing How You Solve Math Problems

音声・ゲームはこちらから

1Researchers at Stanford University in the U.S. studied 68 children aged 8 to 10. Some of the children had dyscalculia. Children with this condition find math problems hard for a long time.

2There is often more than one way to solve a math problem. For example, you can count numbers one by one. You can also use a number fact that you already know.

3The children with dyscalculia took longer to switch between ways. They also reacted less when the problems became harder or easier. Over time, they did not get better at choosing the best way.

4The researchers also looked at the children's brain activity. One brain system showed different activity in the children with dyscalculia. But the study does not show that this difference causes the condition.

5The findings suggest that answers are not the only thing to look at. How children choose a way to solve a problem is important, too.

Words 単語

researchersB1名研究者(researcher の複数形)people who study something to learn new facts
conditionA2名(体や心の)状態、障害a health problem that a person has
solveA1動(問題を)解くto find the answer to a problem
countA2動数えるto say numbers in order
switchB1動切りかえるto change from one thing to another
choosingA1動選ぶこと(choose の ing 形)picking one thing from many
activityA1名活動、動きthings that are happening or moving
causesA2動引き起こす、原因になる(cause に s がついた形)makes something happen

単語のレベル:CEFR-J(『CEFR-J Wordlist Version 1.6』 東京外国語大学投野由紀夫研究室. (URL: https://www.cefr-j.org/download.html より 2026年8月ダウンロード))

1. Reading Quiz 本文の内容に合うものを選ぼう

  1. How old were the children in the study?

    A. 5 to 7B. 8 to 10C. 12 to 15D. 16 to 18

  2. What is one way to solve a math problem in the story?

    A. Asking a friend for the answerB. Drawing a picture of the problemC. Using a calculatorD. Counting numbers one by one

  3. What did the children with dyscalculia take longer to do?

    A. Switch between ways of solving problemsB. Read the problemsC. Write their namesD. Finish their lunch

  4. What does the study NOT show?

    A. That the children with dyscalculia took longer to switch between waysB. That one brain system showed different activityC. That the brain difference causes the conditionD. That the children with dyscalculia did not get better at choosing the best way

2. True or False 正しければ T、違っていれば F

  1. (     ) The study looked at 68 children.

  2. (     ) There is always only one way to solve a math problem.

  3. (     ) Over time, the children with dyscalculia got much better at choosing the best way.

  4. (     ) The researchers looked at the children's brain activity.

3. Fill in the Blanks 下の語から選んで空らんをうめよう(形を変えずに)

switchResearcherschoosingcountsolvecondition

  1. For example, you can _____ numbers one by one.

  2. The children with dyscalculia took longer to _____ between ways.

  3. Children with this _____ find math problems hard for a long time.

  4. _____ at Stanford University in the U.S. studied 68 children aged 8 to 10.

  5. There is often more than one way to _____ a math problem.

  6. Over time, they did not get better at _____ the best way.

4. Word Order 語を並べかえて正しい文にしよう

  1. ( dyscalculia / the / Some / had / of / children ) .

  2. ( one / you / one / can / by / example, / numbers / count / For ) .

  3. ( looked / the / also / children's / The / brain / researchers / at / activity ) .

5. Think and Write 英語で答えてみよう

  1. How do you usually solve a math problem that you don't know how to do?(解き方がわからない数学の問題があるとき、ふだんどうしていますか?)

  2. Is it more important to get the right answer or to know how you got it? Why?(正しい答えを出すことと、どうやって答えを出したかを知ることでは、どちらが大切だと思いますか?それはなぜ?)

Answers 解答

1. (1) B (2) D (3) A (4) C

2. (1) T (2) F (3) F (4) T

3. (1) count (2) switch (3) condition (4) Researchers (5) solve (6) choosing

4.

  1. Some of the children had dyscalculia.
  2. For example, you can count numbers one by one.
  3. The researchers also looked at the children's brain activity.

全文訳

1アメリカのスタンフォード大学の研究者たちが、8〜10歳の子ども68人を調べました。その中には、算数障害(ディスカリキュリア)のある子もいました。この障害のある子は、算数や数学の問題が長いあいだむずかしく感じられます。

2算数の問題には、解き方が1つではないことがよくあります。たとえば、数を1つずつ数えることができます。すでに知っている数の決まりを使うこともできます。

3算数障害のある子は、解き方を切りかえるのに時間がかかりました。問題がむずかしくなったりやさしくなったりしても、あまり反応しませんでした。時間がたっても、いちばんよい解き方を選ぶのがうまくなりませんでした。

4研究者たちは、子どもたちの脳の活動も調べました。算数障害のある子では、脳のあるしくみの活動がちがっていました。でも、このちがいが障害の原因だとまでは、この研究ではわかっていません。

5研究の結果からは、見るべきなのは答えだけではないと考えられます。子どもがどうやって解き方を選ぶかも大切なのです。

文法ポイント:前置詞のあとの動名詞(at ~ing)

前置詞(at, in, of など)のあとに動詞を置くときは ~ing の形(動名詞)にする。本文の they did not get better at choosing the best way がその例。get better at ~ing で「~するのがうまくなる」。

出典:ScienceDaily(Society for Neuroscience 提供)、EurekAlert!(Society for Neuroscience)、Neuroscience News ほか(記事は原田英語の時事英語ジュニアのオリジナル)|https://www.haradaeigo.com/jijieigo-junior/news/2026-11-14-math-strategy-switching-brain/