News by Levels · Level 1 · For teachers
Teacher guide & answers
In this lesson: Identify the experimental subjects and the measured change.
Treatment Helps Damaged Mouse Hearts
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.
Which animals received the treatment?
Correct answer: B — Mice
Why: The first sentence says the tests were in mice.
Clue in the story: Scientists tested a treatment after heart attacks in mice. Cambridge reported on November 9 that treated hearts pumped about 10% more blood per beat than those given a mock treatment.
What increased by about 10%?
Correct answer: A — Blood pumped per beat
Why: The comparison concerns blood pumped per heartbeat.
Clue in the story: Scientists tested a treatment after heart attacks in mice. Cambridge reported on November 9 that treated hearts pumped about 10% more blood per beat than those given a mock treatment.
The open question: accept different answers
Ask learners: Describe the result and one next step.
One possible answer: Treated mouse hearts pumped about 10% more blood per beat than mock-treated hearts. More animal tests and human trials are still needed.
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.
Grammar to discuss
A necessary next step
are still needed
Still needed shows that further testing remains necessary even after the positive mouse result.