Energy, work blocks and breaks

Step 1 Warm-up recall

From M6.L1: what does consolidation mean?

Your answer

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Step 2 Learning goal

By the end of this lesson you can:

• plan blocks and breaks (Foundation);
• total the minutes (Core);
• adjust the plan from evidence (Core).

Step 3 A familiar example

A runner who sprints, walks and sprints again covers more than one who sprints until exhausted. Attention also recovers during breaks.

Step 4 Clear explanation

Attention is limited and tires. A common approach uses focus blocks with short breaks between them. A well-known version is 25 minutes of work and 5 minutes of rest. The lengths come from habit, not from a proven law, so treat them as a starting point and adjust.

Check the first row: 4 blocks of 25 minutes is 100, and 3 breaks of 5 minutes is 15, so 115 minutes in all. In the second plan, 90 + 20 = 110. A break should rest the mind: a short walk or a glass of water works better than a new stream of messages. Remember that switching tasks has a cost, as in the research on task switching by Rubinstein and colleagues (2001).

Track how you feel. If your attention fades after 20 minutes, use shorter blocks; if you are in flow, a longer block is fine. Energy also depends on food, water and movement, but this course makes no claims about specific diets. See working memory for the limits that make breaks useful.

Step 5 Worked example (4 marks)

A plan has 3 blocks of 30 minutes with a 10-minute break between each pair. How long is the whole plan?

1. Blocks: 3 x 30 = 90 minutes. (1 mark)
2. Breaks: 2 between 3 blocks, so 2 x 10 = 20. (1 mark)
3. Total: 90 + 20 = 110. (1 mark)
4. Answer: 110 minutes. (1 mark)

Step 6 Learner practice (instant-marked)

Step 7 Recap

• Focus blocks and breaks protect limited attention.
• Add blocks and the breaks between them.
• Adjust the lengths to your own results.

Step 8 Exit ticket (ungraded)

2 blocks of 40 minutes with one 10-minute break: total?

Your answer

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Step 9 Go further (Extension)

Try two different block lengths and note which keeps your attention better.