Chapter 15 Exercises: Building Your Focus Practice
These exercises are designed to move from analysis (understanding your current attention habits) to design (building sustainable focus practices). The goal is not perfection — it's calibrated improvement.
Exercise 1: The Attention Audit
Time required: 30–40 minutes Materials: Journal
Before changing anything, understand your current attention landscape.
Part A: The distraction inventory
For your last three study sessions, reconstruct as accurately as you can: - How many times did you check or think about your phone? - How many times did you switch to a different tab or application? - How many external interruptions occurred (notifications, messages, people)? - How many internal interruptions occurred (random thoughts, unrelated memories, mental to-do list items surfacing)?
Estimate roughly. Be honest — you probably undercount.
Part B: The context inventory
For those same three sessions, describe: - Where was your phone? (On the desk? In a bag? In another room? On your body?) - What was the ambient environment? (Quiet? Music? TV? Background conversation?) - Were you using the internet? For what? - What were you doing immediately before each session?
Part C: The rating
For each session, estimate: - What percentage of the session were you in genuinely focused engagement? - What percentage were you in distracted or shallow engagement? - If pressed, how many "true focused minutes" did you get out of each session?
Reflection: - What patterns do you notice across the three sessions? - What's your single biggest source of attention fragmentation? - What was your average "true focused minutes" per session hour?
Exercise 2: The Phone Experiment
Time required: Three study sessions in each condition (one to two weeks) Materials: Your normal study materials + an honest tracking method
This is the personal replication of Jordan's experiment from Case Study 15.1.
Condition A (three sessions): Phone present on your desk or workspace, as you normally have it.
Condition B (three sessions): Phone in another room — not silenced, not face down, literally not in the same room.
In each session, track: - Start time and end time - Self-reported focus quality (1–10, checked at the midpoint and end of the session) - Any moments of phone-related distraction (thoughts about the phone, wanting to check it, etc.) - Post-session: complete a brief recall task on the material (5 minutes, closed-book recall of what you studied)
After all six sessions: - Compare focus ratings between conditions - Compare recall performance between conditions - Note subjective differences in the experience of studying
Reflection: - What did the data show? - How large was the effect, if any? - Regardless of the magnitude, what did you notice about the quality of your attention in each condition? - What will you change, if anything, based on this experiment?
Exercise 3: Design Your Deep Work Block
Time required: 30–45 minutes to design; 14 days to run Materials: Calendar
This exercise implements a structured focus practice for two weeks.
Design phase:
Answer these questions to build your deep work block:
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When in your day do you have your best cognitive resources? (For most people: morning. For genuine night owls: late evening. Not after a draining workday, not right after waking if you need time to fully wake, not right after eating a large meal.)
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How long can you realistically protect? Start conservatively. 45 minutes is a real, sustainable deep work block. 2 hours is ambitious for early practice. Better to reliably complete 45-minute sessions than to attempt 2-hour sessions and frequently abort.
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What are the rules during the block? Write them down explicitly: - Phone: [location] - Internet: [on/off/specific restrictions] - Other devices/apps: [rules] - Acceptable interruptions: [only genuine emergencies? define this]
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What is your shutdown ritual? Write the three sentences you'll write at the end of every session: what I accomplished, what is incomplete, what I'll do next session.
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What is your session-goal-setting practice? When and how will you define the specific learning goal for each session?
Run phase: Run the block for 14 consecutive days. Track in a simple log: date, session rating (1–10), planned goal, completed?
Reflection at day 14: - What was the trajectory of session quality ratings over the two weeks? - What were the biggest challenges? - What's the evidence that the learning quality differed from your previous approach? - Will you continue? With what adjustments?
Exercise 4: The Context Switching Experiment
Time required: One day of deliberate observation Materials: A small notebook or phone note to track in real time
This exercise makes the attention residue effect visible.
The experiment: For one full day, track every context switch — every time you change what you're doing. This includes: opening a new tab, checking your phone, switching from one task to another, having a conversation that interrupts work, responding to a notification.
For each switch, note: - The time - What you were switching from and to - How long it took to feel "back" in the previous task after switching (roughly)
Midday check-in: After the morning, review your log. How many switches have there been? What proportion were necessary versus habitual?
Evening reflection: - What was your total number of context switches? - What was the typical recovery time after a switch? - What switch types were most costly (most recovery time needed)? - What tasks were most vulnerable to interruption-induced degradation? - What would it have looked like to protect a 90-minute block from all those switches?
Exercise 5: Building a Pre-Study Shutdown Buffer
Time required: 5–10 minutes, before each study session Materials: Your journal or a piece of paper
This exercise installs the buffer that reduces attention residue from previous tasks before a study session.
The protocol:
Before beginning any study session, spend 5 minutes on the following sequence:
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Open loops: Quickly write down anything unfinished or unresolved that's in your head — worries, to-do items, incomplete conversations, anything nagging at your attention. Get it out of working memory and onto paper. It doesn't disappear from importance; it just no longer needs to occupy active memory.
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State the goal: Write one sentence: "In this session, I will [specific goal]." Not "I will study" — the specific, concrete thing you intend to accomplish.
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Signal start: Take three slow breaths, look at your materials, and begin. The breathing is a transition ritual that signals "we're starting now."
This protocol reduces the attention residue from whatever you were doing before the session and provides the clear goal that flow research suggests is necessary for focused engagement.
Run this protocol for two weeks before every study session. Track whether sessions with the protocol feel different from sessions without it.
Exercise 6: The Pomodoro Calibration
Time required: Three one-hour sessions to calibrate Materials: A timer
This exercise helps you find your optimal focus interval.
The standard Pomodoro is 25 minutes of work, 5 minutes break. This may or may not be right for you. Common alternatives: 45/10, 50/10, 90/20.
Session 1: Run standard Pomodoro intervals (25/5). Track: how you felt entering each break, how focused you were in the last 5 minutes of each work interval, and how you felt at the hour mark.
Session 2: Run 45/10 intervals. Track the same.
Session 3: Run 50/10 intervals. Track the same.
After all three: Compare the tracking data. Which interval produced the most consistently focused work? Which breaks felt most recuperative?
Design your personal interval: Based on the data, choose the interval you'll use going forward. This is your working protocol.
One caution: Pomodoro intervals that are too short (under 20 minutes) typically don't allow for flow to develop. If you're finding that 25 minutes is ending right when you're hitting your stride, consider extending.
Exercise 7: Progressive Project — Focus Audit
Time required: 30 minutes Materials: Your Progressive Project records
Step 1: Look at your Progressive Project practice from the past two weeks. For each session, ask: - Was your phone present or absent? - Were you in a focused state or a distracted state? - What was your best estimate of "true focused minutes" per session?
Step 2: Estimate how much learning time you actually had (focused minutes) versus total session time.
Step 3: Design a specific focus protocol for your Progressive Project going forward: - When and where will sessions happen? - What are the phone and distraction rules? - What will be your session-goal-setting ritual? - What will be your shutdown ritual?
Step 4: Implement the protocol for two weeks. Compare your progress rate before and after.
Reflection: - If you doubled your "true focused minutes" per session while keeping total session time the same, what would that mean for your learning velocity? - What is the single biggest focus-environment change you could make for your Progressive Project?