Calculate a proposed duration change
Calculate a proposed duration change
About 18 minutes, plus any extended practice
Supplied materials
- Paper or a text document; all cases below are original fictional learning inputs.
- An adult may read aloud; drawing or spoken answers are valid. No personal health information or physical performance is required.
- The separate worked case gives proposedMinutes=22, oldMinutes=17. Subtract old planned duration from proposed duration. First identify the quantities and keep their units consistent. The calculation is 22-17=5 minutes increase. Round to six decimal places where needed. That result answers this supplied planning question only. It does not establish what a real person did, diagnose a condition or prove physical skill. Compare the units with the question before accepting a number.
- Fictional case 1: proposedMinutes=25, oldMinutes=20. What is the modeled result using the stated method?
- Fictional case 2: proposedMinutes=18, oldMinutes=15. What is the modeled result using the stated method?
- Fictional case 3: proposedMinutes=32, oldMinutes=25. What is the modeled result using the stated method?
- Fictional case 4: proposedMinutes=24, oldMinutes=18. What is the modeled result using the stated method?
- Fictional case 5: proposedMinutes=20, oldMinutes=12. What is the modeled result using the stated method?
- Fictional case 6: proposedMinutes=30, oldMinutes=24. What is the modeled result using the stated method?
Learn the idea
A planned duration change is arithmetic, not a universal training prescription. A change from twenty to twenty-five minutes is five additional minutes. Its appropriateness depends on ability, activity, support and conditions; no fixed percentage rule guarantees safety.
Subtract the old duration from the proposed duration. Keep the sign: these cases increase, but decreases can also be valid. The calculation states the size of a paper change rather than whether a person should make it.
No activity is required. Use the fictional values and a drawing-only option. Actual progression should be gradual and suitable with appropriate guidance. Pain, injury or distress is not something a worksheet should tell a learner to push through.
- Mark the facts or constraints in the supplied case.
- Apply the method explained above; draw a sequence, table or decision map.
- Compare your result with the worked solution and explain the difference.
- Complete the new cases, then check the changed-case extension.
See the method in action
The separate worked case gives proposedMinutes=22, oldMinutes=17. Subtract old planned duration from proposed duration. First identify the quantities and keep their units consistent. The calculation is 22-17=5 minutes increase. Round to six decimal places where needed. That result answers this supplied planning question only. It does not establish what a real person did, diagnose a condition or prove physical skill. Compare the units with the question before accepting a number.
Check your reasoning
Your answer is temporary and is not saved to an account. Download your current answer before leaving or reloading. Written work on paper or in another app stays in your own file.
Helpful tips
- New minus old measures change; it does not certify the plan as safe.
- No single arithmetic increase is a universal safe training rule.
See the answer and explanation
5 minutes increase
Subtract old planned duration from proposed duration. With proposedMinutes=25, oldMinutes=20, calculate 25-20=5 minutes increase. Results are rounded to six decimal places where needed. This is a supplied model, not a personal health assessment.
Take it further
Changed case: proposedMinutes=28, oldMinutes=21. Show the operation. Expected: 28-21=7 minutes increase; round to six decimal places where needed, retain model limits and explain the units.
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More practice: try new cases
Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.
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Check the subject sources
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