The Biggest Mistake I Made as a Language Teacher

By Beniko Mason

The Student Who Taught Me a Lesson

One of my students, Mr. Tanaka, was a middle-aged man learning English. During his first six months, he read 2,590 pages of graded readers and then took the TOEIC test. He scored 475.

Over the following year, he continued reading every day—about 30 minutes a day, every single day. By the end of that year, he had read 6,456 pages in 217 hours at home, in addition to receiving just 30 hours of Story-Listening in class.

When he took the TOEIC again, his score had risen to 655—an increase of 180 points in a single year.

I had never seen anything like it.

Until then, my junior college students improved by an average of about 200 TOEIC points over two years. Some exceptional students gained nearly 300 points, but they received approximately 500 hours of classroom instruction—seven English classes each week—and averaged about 200 hours of reading at home during those two years.

By comparison, Mr. Tanaka gained 180 points in just one year with only 30 hours of Story-Listening and 217 hours of reading at home. His progress was unlike anything I had previously seen.

His success made me wonder whether he was ready for the next stage.

The Mistake I Made

Because Mr. Tanaka had reached a TOEIC score of 655, I believed he had reached the point where learners should move beyond Story-Listening and graded readers. The common advice was that students at this level should begin reading newspapers, watching English movies, and having conversations with native speakers. Since Mr. Tanaka also wanted to improve his speaking ability, I followed that advice.

I introduced him to a native-speaker teacher. Together they read English newspaper articles, discussed them in English, watched English movies, and talked about them. It all seemed perfectly reasonable. The materials were authentic, the conversations were authentic, and I believed this would help him continue making rapid progress.

He continued those lessons for a year and a half.

When he took the TOEIC again, his score had not increased at all.

That was my mistake.

Looking back, I realized that I had interpreted his test score incorrectly. A TOEIC score of 655 did not mean that he was ready to leave behind the kind of input that had brought him such remarkable success.

What I Learned

At the time, I made another mistake. I had unconsciously accepted the common belief that storytelling is something learners eventually outgrow. I thought that once students reached an intermediate level, they should leave stories behind and move on to newspapers, movies, and conversation.

I did not yet realize that the stories themselves could grow with the learner. I had not yet discovered that I could move from folk tales and fairy tales to Shakespeare, literary short stories, and eventually to authentic literature.

I also did not know whether Story-Listening could continue to benefit learners whose TOEIC scores had already reached 650 or higher.

I was wrong.

Over the next fifteen years, my students helped me answer that question.

They wanted to continue listening to stories, so I gradually expanded the kinds of stories I told. I moved beyond folk tales and fairy tales to Shakespeare retold by Charles and Mary Lamb, and later to literary short stories by writers from around the world.

As the stories became richer, my students continued to grow.

One story prepared them for the next story.

One book prepared them for the next book.

Each successfully understood story strengthened the linguistic system they had already acquired, enabling them to understand language that was just a little richer than before. The process never changed. Only the richness of the input changed.

Over time, I watched students reach TOEIC scores of 795, 915, and even 975 through optimal input alone.

The Lesson

Mr. Tanaka led me to ask one of the most important questions of my career:

How far can optimal input take a learner?

The answer turned out to be much farther than I had imagined.

I once believed that learners eventually outgrew Story-Listening and Guided Self-Selected Reading.

I no longer believe that.

Learners do not outgrow optimal input. They simply require increasingly richer optimal input.

As learners develop, the stories become more sophisticated. The books become more challenging. Eventually, authentic literature naturally becomes part of the process—not because learners have abandoned optimal input, but because authentic literature has become optimal input for them.

The mechanism of language acquisition does not change as learners become more proficient.

Only the input does.

In this video, I explain the mistake I made and the lesson it taught me.