News by Levels · Level 1 · For teachers
Teacher guide & answers
Tiny Robots Move With Living Muscle
How to use these two pages
Give learners the student worksheet. It contains the story and questions, without the answers. Keep this guide for yourself. Use it to lead the activity and explain the answers afterwards.
Student worksheetA simple 15–20-minute lesson
- Before reading · 2 minutes
Show the title. Ask: “What do you think this story is about?”
- Read and answer · 8–10 minutes
Give out the student worksheet. Learners read for the main idea, then reread to answer the 2 questions. They can compare answers with a partner.
- Discuss and write · 5–8 minutes
Check the answers below together. Ask learners to point to the clue in the story, then finish with the open question.
Adjust the support: Let learners use word help or Level 1 if needed. For a challenge, compare the wording in another level. This activity is not a proficiency test.
Answers to the 2 questions
The question numbers match the student worksheet. Each answer includes a reason and the clue learners can find in the story.
Why design the muscle and frame together?
Correct answer: B — Their interaction determines the movement
Why: The system converts muscular contraction through its supporting structure.
Clue in the story: The muscle supplies the pull, while the frame changes that pull into movement. Both parts matter. A device can move well in a laboratory but still need help to keep its living parts alive outside it.
What remains beyond demonstrating movement?
Correct answer: C — Keeping living tissue functioning over time
Why: Sustained operation requires more than a short demonstration.
Clue in the story: The muscle supplies the pull, while the frame changes that pull into movement. Both parts matter. A device can move well in a laboratory but still need help to keep its living parts alive outside it.
The open question: accept different answers
Ask learners: Describe the different jobs of the living muscle and artificial frame.
One possible answer: The muscle contracts, and the frame turns that contraction into movement. The living tissue also needs support to stay functional.
This is an example, not the only correct answer. Look for a relevant idea, a reason and the learner’s own words. Learners can answer aloud or write one or two sentences.