The Power of Optimal Input
Learn how Optimal Input makes language learning natural and enjoyable
Watch Dr. Stephen Krashen discuss the principles of Optimal Input and how it enhances language learning
What You'll Learn from This Video
- How input—not output—is the foundation of language acquisition.
- The four characteristics of Optimal Input: comprehensible, compelling, rich, and abundant.
- The role of Story-Listening and Guided Self-Selected Reading (GSSR) in acquiring language.
- Why forcing output creates anxiety and limits progress.
The Story
These Stories are selected by level for length and contet. The videos are delivered to listeners using language targeted to that level. The Stories include:
- Total Words
- K2 Words
- K1 + K2 Percentile
- Off-List Words


Prompter Vocabulary
This includes various linguistic elements, such as words, sentences, and phrases, to aid in storytelling and understanding the text. Students can take a copy of the story and this prompter home, which includes definitions for each word, making it easier for them to read and understand the story on their own. Japanese, Spanish, and an editible version are included.
Prompter Benefits - Insights from a Language Teacher
- Saves Valuable Time
- Customizable
- Grounded in Expertise
Story-Listening Kits Resources
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