LET Elementary Mathematics — Logic and Mathematics in the Modern WorldSlides
Revision slides for LET Elementary Mathematics — Logic and Mathematics in the Modern World. Structured for quick scanning, with one idea per slide and the key formulas called out clearly. Good for the final week before the LET Elementary 2026 when you want to refresh the whole chapter in under an hour.
Exam context
The Licensure Examination for Professional Teachers — Elementary is conducted by Professional Regulation Commission (PRC) and is scheduled for Bi-annual. The Mathematics subtest is marked as "Core" in the official pattern, and Logic and Mathematics in the Modern World appears in position 7th of 7 in the LET Elementary Mathematics review rotation. Passing mark: Weighted average of 75% with no grade below 50%. Recent LET Elementary 2026 papers have drawn roughly a meaningful share of questions from this subject.
Logic and Mathematics in the Modern World - Slides
Slides
Statements and Truth Values: Foundation of Logic
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S1
Logical Connectives: The Four Main Operations
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S2
Truth Table: Complete Reference for All Connectives
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S3
Variations of the Conditional: Converse, Inverse, and Contrapositive
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S4
Validity and Valid Argument Forms: Modus Ponens and Modus Tollens
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S5
De Morgan's Laws: Simplifying Negations of Compound Statements
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S6
Inductive vs. Deductive Reasoning: Two Paths to Knowledge
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S7
Arithmetic Sequences: Finding Terms and Sums
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S8
Geometric Sequences: Exponential Growth and Decay
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S9
The Fibonacci Sequence and the Golden Ratio
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S10
Special Number Patterns: Squares, Triangular Numbers, and Beyond
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S11
Simple Interest and Compound Interest: Applications in Finance
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S12
Sets, Unions, and Intersections: Foundations for Data and Logic
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S13
Codes, Check Digits, and Modular Arithmetic: Mathematics in Digital Life
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S14
Data, Statistics, and Mathematical Modelling: Making Sense of Information
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S15
Tautologies and Contradictions: Always True, Always False
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S16
Problem-Solving Strategies: A Framework for Approaching Logic and Mathematics Questions
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S17
Key Takeaways and Summary: Logic and Mathematics in the Modern World
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S18
Preparing for the LET: Practice and Self-Assessment
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S19
Stored In
chapter_slides
Slide Count
19
Summary Only
true
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