Civil Service Exam (Subprofessional) Analytical Ability — Logical ReasoningMemory Anchors

Tags

• definition
• classification
• reasoning

Topic

Types of Logical Reasoning

Concept

Deductive vs Inductive Reasoning

Anchor Id

A1

Difficulty

medium

Memory Aid

DIGS: Deductive Is General to Specific (like digging deep from broad earth to specific treasure), ISPS: Inductive is Specific to Probable general Statement (like collecting specific shells to probably say all shells are beautiful)

Anchor Type

acronym

Why It Works

The acronym creates a clear contrast between the two reasoning types, with the digging metaphor emphasizing the 'top-down' nature of deductive reasoning

Example Usage

In the exam question 'All birds fly. Penguins are birds. Therefore penguins fly' - I remember DIGS and know this is deductive reasoning with a false premise

Recall Trigger

When you see 'All' or 'Every' think DIGS (deductive), when you see 'Some' or 'Most' think ISPS (inductive)

Tags

• structure
• definition
• analysis

Topic

Argument Analysis

Concept

Argument Structure (Premise + Conclusion)

Anchor Id

A2

Difficulty

easy

Memory Aid

An argument is like a house: PREMISES are the foundation blocks (supporting evidence) and the CONCLUSION is the roof (what's built on top). Just like you can't have a roof floating in air, you can't have a conclusion without premises supporting it.

Anchor Type

analogy

Why It Works

The house metaphor makes abstract argument structure concrete and visual, emphasizing the supportive relationship between premises and conclusions

Example Usage

In 'Scientists are brilliant. Jet is a scientist. Therefore, Jet is brilliant' - I see two foundation blocks (premises) supporting the roof (conclusion)

Recall Trigger

Whenever analyzing an argument, visualize building a house - identify the foundation blocks first

Tags

• structure
• formula
• logic

Topic

Categorical Syllogism

Concept

Categorical Syllogism Format

Anchor Id

A3

Difficulty

medium

Memory Aid

ABC Baby Categories: If A is B (major premise) and B is C (minor premise), then A is C (conclusion). Remember: A-B-C like learning the alphabet, with B as the 'Baby' in the middle connecting the family

Anchor Type

mnemonic

Why It Works

The familiar ABC sequence makes the syllogism structure easy to remember, with 'Baby' emphasizing B's connecting role

Example Usage

For 'All dogs bark, Sparky is a dog, therefore Sparky barks' - I use ABC: A=Sparky, B=dog (baby connector), C=bark

Recall Trigger

When seeing syllogism problems, mentally recite 'ABC Baby' and identify which term appears in both premises (the middle term)

Tags

• logic
• elimination
• choice

Topic

Disjunctive Syllogism

Concept

Disjunctive Syllogism (Either/Or Logic)

Anchor Id

A4

Difficulty

medium

Memory Aid

Princess Either-Or lives in a castle with two doors - Magic Door B and Cursed Door C. The rule is she must choose ONE door, never both. When the guard announces 'Princess Either-Or chose Door B' everyone knows she did NOT choose Door C. This is disjunctive syllogism: eliminate one option to confirm the other.

Anchor Type

micro_story

Why It Works

The story creates emotional engagement while the either/or choice mirrors the logical structure perfectly

Example Usage

For 'The donut is either glazed or filled. The donut is not filled. Therefore, it's glazed' - I imagine Princess Either-Or rejecting the filled door, so she must choose glazed

Recall Trigger

When you see 'either...or' problems, think of Princess Either-Or and her two exclusive doors

Tags

• logic
• causation
• validity

Topic

Conditional Syllogism

Concept

Conditional Syllogism (If-Then Logic)

Anchor Id

A5

Difficulty

hard

Memory Aid

The If-Then Chain: Visualize a golden chain where each link is connected. IF Link A is strong THEN Link B is strong. When you pull Link A, the force transfers to Link B. If Link B breaks, you know Link A wasn't pulled properly. The chain only works in one direction - forward!

Anchor Type

visual_association

Why It Works

The chain metaphor shows how conditions flow in one direction and helps understand valid vs invalid inferences

Example Usage

For 'If it rains, I carry umbrella. I'm carrying umbrella. Did it rain?' - I see the chain doesn't work backward, so this is invalid reasoning

Recall Trigger

For if-then statements, visualize the golden chain and remember it only transmits force forward

Tags

• visual
• sets
• relationship

Topic

Venn Diagrams

Concept

Venn Diagram - All A are B

Anchor Id

A6

Difficulty

easy

Memory Aid

The Swimming Pool Model: Imagine Pool B (big pool) and Pool A (kiddie pool). When we say 'All A are B,' the kiddie pool A is completely INSIDE the big pool B. Every swimmer in kiddie pool A is also in big pool B, but big pool B has other areas too.

Anchor Type

visual_association

Why It Works

The nested pools create a clear visual for the 'all A are B' relationship and why it's not reversible

Example Usage

For 'All Filipinos are Asians' - I see the Philippines kiddie pool completely inside the Asia big pool

Recall Trigger

For 'All' statements, visualize kiddie pool inside big pool

Tags

• visual
• sets
• relationship

Topic

Venn Diagrams

Concept

Venn Diagram - Some A are B

Anchor Id

A7

Difficulty

easy

Memory Aid

The Overlapping Islands Model: Islands A and B are separate but connected by a bridge (overlap area). 'Some A are B' means some people can walk across the bridge between islands, but each island also has areas the other can't reach.

Anchor Type

visual_association

Why It Works

The island metaphor makes overlapping sets concrete and memorable, emphasizing partial relationships

Example Usage

For 'Some women are doctors' - I see Woman Island and Doctor Island connected by a bridge where some people can cross

Recall Trigger

For 'Some' statements, visualize two islands with a connecting bridge

Tags

• sequence
• comparison
• spatial

Topic

Character Ordering

Concept

Character Ordering/Ranking Problems

Anchor Id

A8

Difficulty

medium

Memory Aid

The School Line Method: Visualize students lining up in your old school hallway from shortest to tallest. Use familiar locations: Library (shortest), Principal's Office (middle), Gym (tallest). Place each character at their height position along this familiar hallway route.

Anchor Type

method_of_loci

Why It Works

Using a familiar physical space leverages spatial memory, making character positions easier to recall and manipulate

Example Usage

For age comparisons, I place youngest at Library end, oldest at Gym end, then arrange others along the hallway based on given clues

Recall Trigger

When solving ordering problems, mentally walk through your school hallway placing characters by their relative positions

Tags

• validity
• evaluation
• logic

Topic

Argument Evaluation

Concept

Valid vs Invalid Arguments

Anchor Id

A9

Difficulty

medium

Memory Aid

The Recipe Test: A VALID argument is like following a recipe correctly - if you have good ingredients (true premises) and follow the steps (logical structure), you get good food (true conclusion). An INVALID argument is like a bad recipe - even with good ingredients, the wrong steps give bad results.

Anchor Type

analogy

Why It Works

The cooking metaphor makes abstract logical validity concrete and relatable to everyday experience

Example Usage

For 'All cats meow, Fluffy meows, therefore Fluffy is a cat' - I check the recipe steps and see the logic is flawed (invalid recipe)

Recall Trigger

When evaluating arguments, ask 'Is this recipe logically sound?' to test validity

Tags

• hidden premise
• analysis
• inference

Topic

Assumptions

Concept

Assumption in Arguments

Anchor Id

A10

Difficulty

hard

Memory Aid

The Missing Bridge Story: Detective Assumption always looks for the missing bridge in arguments. When someone jumps from Premise Island to Conclusion Island, Detective Assumption asks 'What invisible bridge allowed that leap?' The assumption is the hidden bridge that makes the argument work.

Anchor Type

micro_story

Why It Works

The detective story creates intrigue while the bridge metaphor clearly illustrates how assumptions connect premises to conclusions

Example Usage

For 'Exercise increases happiness, so I should exercise' - Detective Assumption finds the hidden bridge: 'I want to be happy'

Recall Trigger

When finding assumptions, become Detective Assumption searching for the missing bridge

Tags

• rules
• puzzle
• constraints

Topic

Magic Squares

Concept

Magic Square Rules

Anchor Id

A11

Difficulty

medium

Memory Aid

Magic Square, magic square, numbers dance with special care. Rows and columns, diagonals too, all must sum the same, it's true! No number twice in any line, makes the magic square divine!

Anchor Type

rhyme

Why It Works

The rhythmic rhyme makes the multiple rules memorable through auditory processing and repetition

Example Usage

When filling a magic square, I chant the rhyme to remember: same sum in all directions, no repeating numbers

Recall Trigger

Before solving magic squares, recite the rhyme to remember all constraints

Tags

• strategy
• systematic
• puzzle

Topic

Sudoku

Concept

Sudoku Strategy

Anchor Id

A12

Difficulty

easy

Memory Aid

SCAN-ROW-SET: S-Scan for single possibilities, C-Check rows for missing numbers, A-Analyze columns for gaps, N-Note sets for completion, R-Repeat the process, O-Organize possibilities, W-Write confirmed numbers, S-Start elimination, E-End with verification, T-Test your solution

Anchor Type

acronym

Why It Works

The systematic acronym provides a step-by-step approach that prevents random guessing

Example Usage

In a 4x4 Sudoku, I SCAN for boxes with only one possible number, then CHECK each row systematically

Recall Trigger

Before starting any Sudoku, remember to SCAN-ROW-SET systematically

Tags

• navigation
• process
• decision

Topic

Flowcharts

Concept

Flowchart Reading Strategy

Anchor Id

A13

Difficulty

easy

Memory Aid

The GPS Navigation Method: Reading a flowchart is like following GPS directions. START at the beginning point, FOLLOW the arrows like roads, STOP at decision diamonds (traffic lights) to check conditions, CHOOSE the correct path based on yes/no answers, and ARRIVE at the destination (conclusion).

Anchor Type

analogy

Why It Works

The familiar GPS metaphor makes abstract flowchart navigation concrete and systematic

Example Usage

In Theena's transportation flowchart, I use GPS thinking: start point, check weather condition (traffic light), follow correct arrow based on yes/no

Recall Trigger

When seeing flowcharts, activate GPS mode and follow the navigation rules

Tags

• pattern
• deduction
• analysis

Topic

Ancient Languages

Concept

Ancient Language Pattern Recognition

Anchor Id

A14

Difficulty

hard

Memory Aid

WORD-REPEAT-PATTERN: W-Find Words that appear twice, O-Observe their positions, R-Recognize the sentence structure, D-Deduce meaning from placement, R-REPEAT this process, E-Eliminate impossibilities, P-Pattern match with known words, A-Assign meanings logically, T-Test your translation, T-Think critically about results, E-Establish the pattern, R-Review for consistency, N-Note the final answer

Anchor Type

mnemonic

Why It Works

The systematic approach prevents guessing and builds logical deduction skills through pattern recognition

Example Usage

In 'Carthus Miu Nerzas' vs 'Farthas Miu Azdek', I find 'Miu' repeats, so I deduce its meaning from position patterns

Recall Trigger

For ancient languages, think 'WORD-REPEAT-PATTERN' and follow the detective steps

Tags

• terms
• structure
• relationship

Topic

Syllogism Structure

Concept

Syllogism Terms (Major, Minor, Middle)

Anchor Id

A15

Difficulty

medium

Memory Aid

The Family Tree: MIDDLE term is the parent (appears in both premises but dies - disappears in conclusion), MAJOR term is the firstborn child (appears in conclusion as predicate), MINOR term is the youngest child (appears in conclusion as subject). Remember: Parent connects the children but doesn't appear in the family portrait (conclusion).

Anchor Type

visual_association

Why It Works

The family relationship makes abstract term roles concrete and memorable through emotional connection

Example Usage

In 'All dogs bark, Sparky is a dog, therefore Sparky barks' - dog is parent (middle), bark is firstborn (major), Sparky is youngest (minor)

Recall Trigger

When identifying syllogism terms, visualize the family tree with parent connecting children

Tags

• validity
• truth
• evaluation

Topic

Logic Evaluation

Concept

Truth vs Validity in Logic

Anchor Id

A16

Difficulty

hard

Memory Aid

The Theater Performance: VALIDITY is like perfect acting technique - the actor follows the script flawlessly even if the script is nonsense. TRUTH is like the script content - it matches reality. You can have brilliant acting (valid logic) with a fantasy script (false premises), or terrible acting (invalid logic) with a true story (true premises).

Anchor Type

micro_story

Why It Works

The theater metaphor separates logical structure from content truth, preventing common student confusion

Example Usage

For 'All birds fly, penguins are birds, therefore penguins fly' - the acting is perfect (valid structure) but the script is wrong (false premise)

Recall Trigger

When evaluating arguments, think 'Is the acting good? Is the script true?' to separate validity from truth

Tags

• strategy
• reversal
• calculation

Topic

Problem Solving

Concept

Working Backwards Strategy

Anchor Id

A17

Difficulty

medium

Memory Aid

The Time Machine Detective: When solving working backwards problems, become a detective with a time machine. Start at the crime scene (final result), then travel backwards in time, undoing each action in reverse order. Addition becomes subtraction, multiplication becomes division, like rewinding a movie to find the beginning.

Anchor Type

analogy

Why It Works

The detective time machine creates engagement while the movie rewind metaphor makes mathematical reversal intuitive

Example Usage

If someone ends with ₱1000 after buying items worth ₱300, I time-travel back: ₱1000 + ₱300 = starting money

Recall Trigger

For working backwards problems, activate time machine detective mode and reverse all operations

Tags

• systematic
• elimination
• organization

Topic

Problem Solving

Concept

Organized List Strategy

Anchor Id

A18

Difficulty

easy

Memory Aid

The Elimination Tournament Bracket: Create a tournament bracket where each possibility competes. Round 1: eliminate based on first constraint. Round 2: eliminate based on second constraint. Continue until only the champion (correct answer) remains. Like a sports tournament, systematic elimination finds the winner.

Anchor Type

visual_association

Why It Works

The competitive bracket format makes systematic elimination engaging and prevents skipping steps

Example Usage

Finding a two-digit number with digit sum 15, difference 1, divisible by 13: I create bracket with 69,78,87,96 and eliminate systematically

Recall Trigger

For multiple constraint problems, draw an elimination tournament bracket

Tags

• visual
• spatial
• mapping

Topic

Problem Solving

Concept

Making Diagram Strategy

Anchor Id

A19

Difficulty

medium

Memory Aid

The Barangay Map Method: Draw problems like creating a barangay map. Place each person/object at a house location, draw roads (relationships) between houses, mark distances and directions. Use familiar landmarks (school, church, market) as reference points. Walk through your barangay map to solve the problem.

Anchor Type

method_of_loci

Why It Works

Using familiar Philippine barangay layout leverages spatial memory and cultural relevance

Example Usage

For Gel and Lance walking opposite directions, I place them at the barangay center, draw roads east/west, mark their houses at walking distances

Recall Trigger

For complex relationship problems, draw your barangay map with familiar landmarks

Tags

• sequence
• pattern
• analysis

Topic

Patterns

Concept

Pattern Recognition in Sequences

Anchor Id

A20

Difficulty

medium

Memory Aid

DRIP-FLOW: D-Determine the differences, R-Recognize patterns (repeating/increasing/alternating), I-Identify the rule, P-Predict next terms, F-Follow the pattern, L-Look for alternating operations, O-Observe number relationships, W-Write the next term

Anchor Type

acronym

Why It Works

The water flow metaphor (DRIP-FLOW) emphasizes continuous pattern analysis while providing systematic steps

Example Usage

For sequence 2,4,7,11,16,22 - I find differences +2,+3,+4,+5,+6, so next difference is +7, making next term 29

Recall Trigger

For sequence problems, think water DRIP-FLOW and follow each droplet

Formula

Magic Square Sum = n(n²+1)/2

Mnemonic

Nice Numbers Need Half: n times (n² + 1) divided by 2. Remember 'Nice Numbers Need Half' where each N represents an n in the formula

When To Use

When calculating the target sum for any size magic square

What Each Part Means

n = number of rows/columns, n² = total cells, +1 adds magic, ÷2 gives average

Formula

Sudoku Sum = 1+2+3+...+n = n(n+1)/2

Mnemonic

Students Need Half Plus: n times (n + 1) divided by 2. Each row, column, and set must sum to this number

When To Use

When checking if Sudoku solutions are mathematically correct

What Each Part Means

n = highest number in puzzle, (n+1) creates the series sum, ÷2 completes the formula

Formula

Distance = Speed × Time

Mnemonic

Dogs Sprint Today: D = S × T. Remember dogs sprinting for a time period covers distance

When To Use

When solving movement problems in logical reasoning scenarios

What Each Part Means

D = total distance covered, S = speed per unit time, T = time duration

Chain Title

Types of Logical Reasoning

Recall Test

What type of reasoning goes from 'All birds fly' to 'This robin flies'?

Memory Chain

DIA the Logic Princess: Deductive Diana goes from castle (general) to village (specific), Inductive Ian climbs from village (specific) to castle (general), Abductive Ana finds the best explanation for mysteries

Items To Remember

• Deductive (General to Specific)
• Inductive (Specific to General)
• Abductive (Best Explanation)

Chain Title

Syllogism Types

Recall Test

Which syllogism type uses 'If it rains, then I carry umbrella'?

Memory Chain

CDC the Syllogism Squad: Categorical Cat sorts all/some, Disjunctive Dog chooses either/or, Conditional Carabao follows if/then chains

Items To Remember

• Categorical (All/Some statements)
• Disjunctive (Either/Or)
• Conditional (If/Then)

Chain Title

Argument Components

Recall Test

What provides the support in an argument?

Memory Chain

PCA Bank Account: Premise deposits support, Conclusion is the balance, Assumption is the hidden interest that makes it work

Items To Remember

• Premise (Supporting statement)
• Conclusion (Main claim)
• Assumption (Hidden premise)

Chain Title

Venn Diagram Relationships

Recall Test

How do you draw 'All cats are mammals'?

Memory Chain

ASN Swimming Lessons: All students jump inside the big pool, Some students overlap in shallow area, No students swim in the separate kiddie area

Items To Remember

• All A are B (A inside B)
• Some A are B (A overlaps B)
• No A are B (A separate from B)

Chain Title

Problem Solving Strategies

Recall Test

Which strategy works best for 'I ended with ₱500 after spending money' problems?

Memory Chain

WOMP the Problem Solver: Working backwards like rewinding, Organizing lists like filing, Making diagrams like drawing maps, Pattern recognition like finding rhythms

Items To Remember

• Working Backwards
• Organized List
• Making Diagrams
• Pattern Recognition