Time and energy as resources
A resource is anything we use to reach our goals: money, time, energy, skills, space, things. Time is special:
- Everyone has the same amount: 24 hours a day.
- It cannot be saved for later or brought back.
- It is used up whether we plan or not.
Energy (our human energy) is closely tied to time. A tired person takes longer to do the same job. So we manage time and energy together.
Making a time plan
A time plan is a list of tasks fitted into the hours of a day or week. Steps:
- List all the tasks.
- Set priorities: must-do first, then should-do, then nice-to-do.
- Estimate how long each task takes.
- Fit tasks into time slots, with some free time and rest.
- Carry out the plan.
- Check at the end of the day and improve tomorrow's plan.
Tools that help: a to-do list, a calendar or planner, an alarm or phone reminder, and dovetailing (doing two tasks together, like soaking dal while cleaning the kitchen).
Peak load, work curve and rest
A peak load period is a time when many tasks pile up together, like 6โ8 am on school days or the hour before guests arrive. To ease it:
- Do some work in advance (the night before).
- Share tasks among family members.
- Use labour-saving tools (pressure cooker, mixer, washing machine).
- Move tasks that can wait to a quieter time.
The work curve is a graph of how much we get done as time passes. At first output rises (warming up), then stays high, then falls as we tire. A short rest before we get too tired lifts the curve again. Rest can be a break, a change of task, or sleep.
Work simplification and space planning
Work simplification means doing a job with less time and energy. Ways:
- Change body position: sit for long jobs, keep work at elbow height, lift with bent knees.
- Change tools and storage: keep things near where they are used.
- Change the method: cut steps, group similar jobs, collect everything before you start.
Space planning arranges rooms so they are easy and safe to use. Principles:
- Aspect: place rooms for good light and air.
- Grouping and roominess: related activities together, enough free floor to move.
- Circulation: a clear path from room to room, not through the middle of another room.
- Privacy, furniture fit, storage and safety: doors and windows placed for privacy; furniture to suit the room; storage near use; no sharp corners or slippery floors.
A kitchen "work triangle" (store, cooking stove, sink) close together is a classic example.
Try it: your own time plan
Write what you did each hour yesterday. Colour sleep, school, study, play and chores. Find your peak load hour. Pick two tasks you could do the night before, and one you could share. In the 3D scene, set the same numbers and see how the peak drops.
Key formulas and definitions
- Time = 24 h a day for everyone; cannot be stored
- Time plan: list โ prioritise โ estimate โ fit โ do โ check
- Peak load eased by: advance work ยท sharing ยท tools ยท shifting tasks
- Work curve: output falls with fatigue, rises after rest
- Work simplification: change body position, tools/storage, or method
Worked examples
1. At 7 am a family has 6 tasks. 3 are done the night before and 2 people share the rest. How many tasks does each person do at 7 am?
6 โ 3 = 3 tasks left. Shared by 2 people: 3 รท 2 = 1.5, so one does 2 and the other does 1.
2. A student studies from 4 pm to 10 pm without a break and finds the last two hours wasted. Explain using the work curve.
Output falls as fatigue builds. Short breaks (for example 10 minutes every hour) would lift the curve and keep the last hours useful.
3. In a kitchen, the sink is in one corner and the stove in the far corner, with the fridge in another room. Suggest a change.
Bring the store (fridge), stove and sink close to form a work triangle, so the cook walks less and saves time and energy.
Common mistakes
- Thinking time can be saved for later. Time can only be used well or wasted.
- Making a plan with no rest or free time. Such plans fail quickly.
- Working non-stop to 'save time'. Fatigue lowers output, as the work curve shows.
- Confusing peak load with work curve: peak load is many tasks at once; work curve is output over time.