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AP Computer Science Principles 1-Month Study Plan

A structured 4-week plan that builds mastery without burning out.

⏱️ ~60 hours total over 4 weeks🖥️ AP Computer Science Principles

You have four weeks until the AP CSP exam. This plan breaks the 5 Big Ideas into daily chunks, builds pseudocode fluency incrementally, and includes three full 70-question MCQ sets. Two to three focused hours per day.

Week 1: Big Ideas 1-2 Foundation

DayTopicReview (60-90 min)Practice (60-90 min)Deliverable
MonProgram Purpose & DesignWhat is a program's purpose vs function? Design thinking, requirements gatheringClassify 5 program descriptions by goalKnow purpose vs function
TueDebugging & CollaborationSyntax vs logic errors, debugging strategies, iterative cyclesFix 3 buggy pseudocode snippetsTrace and fix code
WedBinary & Bit Representation1 bit = 0 or 1. 1 byte = 8 bits. Decimal ↔ binary conversionConvert 15 numbers: decimal ↔ binaryMaster binary conversion
ThuCompression: Lossy vs LosslessJPEG (lossy) removes data. PNG (lossless) keeps all. Trade-off: file size vs qualityAnswer 12 MCQ on compression methodsKnow lossy vs lossless cold
FriData Abstraction & MetadataMetadata = data about data (file size, creation date, photo location)10 MCQ on metadata, abstractionUnderstand metadata
SatData Privacy & SecurityPII = personally identifiable information. Encrypt. Control access.8 MCQ on PII, encryption basicsKnow what PII is
SunWeek 1 Review + Light PracticeSkim Big Ideas 1-2 summary15 mixed MCQ from Week 1 topicsIdentify weak areas

Week 2: Big Idea 3a — Lists & Procedures

DayTopicReview (60-90 min)Practice (60-90 min)Deliverable
MonVariables & AssignmentVariables hold data. x ← 5 assigns. Types: numbers, strings, booleansTrace 5 assignment sequencesKnow assignment syntax
TueLists (1-indexed)list ← [1, 2, 3]. list[1] = 1. Lists are 1-indexed in AP PseudocodeCreate a list, predict values at indicesMaster 1-indexing
WedList OperationsINSERT(list, i, val), APPEND(list, val), REMOVE(list, i), LENGTH(list)Trace 8 list operations in sequencePredict list state after operations
ThuProcedures & ParametersPROCEDURE name(p1, p2) { ... RETURN value }. Parameters = inputs. Return = outputTrace 5 procedures with parameters; predict return valuesKnow procedure structure
FriScope & AbstractionVariables inside a procedure are local (don't exist outside). Procedural abstraction = use a procedure without knowing internals10 MCQ on procedure scope, abstractionKnow local vs global
SatFull MCQ Practice Set 1Quick Big Ideas 1-2 review (30 min)Timed 70-question MCQ (2 hrs)Establish baseline score
SunWeek 2 Review + DebriefAnalyze Set 1 weak spots. Re-study those Big Ideas.12 retake MCQ from Set 1Identify growth areas

Week 3: Big Idea 3b — Control Flow & Algorithms

DayTopicReview (60-90 min)Practice (60-90 min)Deliverable
MonIF/ELSE ConditionalsIF (condition) { ... } ELSE { ... }. Condition evaluates to true/false. Branching logic.Trace 7 pseudocode blocks with nested IF/ELSEPredict all branch outcomes
TueLoops: REPEAT n TIMESREPEAT 3 TIMES { x ← x + 1 }. Fixed count. Best for known iterations.Trace 5 REPEAT loops; track counter after each iterationMaster counter updates
WedLoops: REPEAT UNTILREPEAT UNTIL (x = 10) { x ← x + 1 }. Loop until condition is true. Best for unknown count.Trace 6 REPEAT UNTIL blocks; identify loop terminationKnow when loop stops
ThuFOR EACH LoopsFOR EACH item IN list { DISPLAY(item) }. Iterate through list without index. Clean for list traversal.Trace 5 FOR EACH loops; modify lists inside loopsTraverse lists flawlessly
FriSequential, Parallel, Distributed ComputingSequential = one task. Parallel = multiple tasks at once (faster, shared resources). Distributed = multiple machines.12 MCQ: identify which approach for a scenarioKnow computing models
SatUndecidable Problems & EfficiencyDecidable = algorithm solves it. Undecidable = no algorithm for all inputs (halting problem). Efficiency: time complexity, scalability.10 MCQ on decidability, algorithm efficiency, bottlenecksKnow decidable vs undecidable
SunWeek 3 Review + Full Trace PracticeCombine all Week 3 control structures. Trace one 20-line pseudocode block with multiple loops and conditionals.20 mixed MCQ from Week 3Trace complex code

Week 4: Big Ideas 4-5 + Full Practice Exams

DayTopicReview (60-90 min)Practice (60-90 min)Deliverable
MonInternet Architecture & PacketsPacket = data + header (source, destination, protocol). Router reads header, forwards. Protocols = agreed rules (TCP/IP, DNS, HTTP).12 MCQ on packets, routing, protocolsKnow Internet basics
TueRedundancy & ScalabilityRedundancy = multiple paths (fault tolerance). Scalability = handles growth. Bandwidth = capacity. Latency = delay.10 MCQ on redundancy, bottlenecks, system designKnow reliability concepts
WedCybersecurity & EncryptionSymmetric: same key (fast). Asymmetric: public/private (slower, authentication). Phishing, malware, multi-factor auth.12 MCQ on encryption, security threats, defensesKnow security vocabulary
ThuDigital Divide & ImpactDigital divide = access gaps. Beneficial computing innovations vs harmful. Bias in algorithms. Crowdsourcing, citizen science. IP, copyright.10 MCQ on computing impact, equity, ethicsUnderstand social impact
FriFull MCQ Practice Set 2Quick review of Big Ideas 4-5 (30 min)Timed 70-question MCQ (2 hrs)Measure progress
SatReview Weak TopicsAnalyze Set 2 results. Reteach the bottom 3 Big Ideas.15 retake MCQ from lowest-scoring topicsFocus on growth
Sun6-Hour Mock ExamLight skim of hardest concepts (30 min)Full mock exam (3-4 hrs): 70 MCQ + break + 70 MCQ Set 3 + debrief. Track your score and confidence.Final performance

Create Performance Task Strategy

Throughout the month, review your own CPT submission:

  • What does your program do? (purpose)
  • What are the main data structures? (lists, variables)
  • What are your biggest procedures?
  • Any loops or conditionals you're proud of?

Some MCQ will show pseudocode similar to yours. Recognizing your own patterns = 2-4 free points.

Scoring targets

  • 5: ~50-55+ on 70 MCQ (71-79%)
  • 4: ~40-49 (57-70%)
  • 3: ~28-39 (40-56%)

By the end of Week 4, aim for Set 3 score ≥ 50. If you're at 45, spend Day 7 reteaching pseudocode tracing (highest ROI).

Most common traps

  • 1-indexed lists. AP Pseudocode: list[1] = first item.
  • Loop counter off-by-one. Write state after each iteration.
  • Lossy ≠ lossless. JPEG loses data (small file). PNG keeps all (large file).
  • Symmetric = same key. Asymmetric = public/private.
  • Parallel ≠ distributed. Parallel = shared machine, multiple cores. Distributed = multiple machines.

Resources

AP CSP topic library →. 3-Day plan → if you fall behind. Last-minute checklist → before exam day.

Good luck. One month, one topic per day, one day at a time. You've got this. 🎯

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