Logic & Truth Tables Study Guide: NEB 11 Maths

Seven-session plan

Turn Logic and Truth Tables into retrievable knowledge

Mathematical logic studies propositions and valid reasoning. Truth tables evaluate compound statements under every assignment, while implication, converse, inverse and contrapositive must be distinguished precisely.

1. Map prerequisites and definitions.
2. Derive or justify the main relation: p→q is false only when p is true and q false; p↔q is true when p and q share a truth value; ¬(p∧q)=¬p∨¬q and ¬(p∨q)=¬p∧¬q.
3. Redraw diagrams from memory.
4. Study this worked checkpoint: For p=true and q=false, p→q is false but q→p is true. The contrapositive ¬q→¬p is logically equivalent to p→q.
5. Mix conceptual and numerical questions.
6. Complete a timed closed-book set.
7. Retest only the first wrong decision in each answer.

Use contrast tables and error cards

Place easily confused ideas side by side. Write what stays fixed, what changes, the governing equation and the observable consequence. One high-value warning is: Treating implication as causal, confusing converse with contrapositive, evaluating only one row, or applying De Morgan laws without negating each component.

Use spaced retrieval: ten minutes today, a closed-book test tomorrow and a mixed review after one week. Explain every graph or diagram aloud before using algebra.

NEB answer method

Model → evidence → equation → check

First identify the system and what the question asks. Label the diagram, apparatus or reaction with SI quantities, then state the principle before selecting an equation. Solve symbolically where possible and check units, limiting cases and chemical or physical meaning.

Make the idea concrete in Nepal

Connect the model to a school laboratory, household technology, health, environment, energy or local material. The example should clarify the science rather than merely mention a place. Compare a prediction with an observation and record uncertainty.

Review the NEB Class 11 Mathematics revision roadmap and the complete Mathematics guide. For online or physical tuition, call 9846662070.

Frequently asked questions

Questions students ask about Logic and Truth Tables

References and next steps

Scope checked against CDC Nepal; concept support from an institutional reference and OpenStax Science. Continue with the Logic and Truth Tables cluster.