Texas Education Agency
Texas Gateway: Introduction to Logical Reasoning
This activity provides the opportunity to explore the validity of the converse, inverse, and contrapositive of statements. It also assists in recognizing the connections between biconditional statements and true conditional statements...
Texas Education Agency
Texas Gateway: Using Logical Reasoning to Prove Statements Are True
Given statements about a geometric relationship, the student will distinguish between the undefined terms, definitions, postulates, conjectures, and theorems to prove the statements are true.
CK-12 Foundation
Ck 12: Geometry: If Then Statements
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to rewrite statements in if-then form and determine the hypothesis and conclusion. Students examine guided notes, review guided...
Math Planet
Math Planet: Geometry: If Then Statement
If-then statements are explained throught the use of examples and a video lesson. [1:16]
ClassFlow
Class Flow: Logic and Reasoning
[Free Registration/Login Required] This flipchart defines logical conditional statements in a hypothesis and conclusion formula. Using the if-then model, students will determine hypotheses and conclusions.
Oswego City School District
Regents Exam Prep Center: Working With Logic
Test your logic and knowledge of conditionals, biconditionals, negations, conjunctions, and disjunctions in this twelve-question quiz. Answer each question on your own, then see what the answer and the reasoning behind the answer are.
ClassFlow
Class Flow: Statements of Logic
[Free Registration/Login Required] Statements of Logic flipchart, interactively involves the students first through a series of review question on deductive structure, and then into the meat of conditional statements as well and Venn...
Khan Academy
Khan Academy: The Logic of "If" vs. "Only If"
How are "If" and "Only if" different? Consider the following two statements: I wear a hat if it's sunny. I wear a hat only if it's sunny. These two statements sound so similar, but their meanings are different. The test will challenge...
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Predicate Calculus
The resource investigates predicate calculus. The tutorial examines propositional calculus, universal quantifiers, mathematical statements, and divisibility. Students learn about the logic concepts through notes and examples. Practice...
CK-12 Foundation
Ck 12: Geometry: Converse, Inverse, and Contrapositive
[Free Registration/Login may be required to access all resource tools.] This concept introduces students to converses, inverses, contrapositives, and biconditional statements. Students examine guided notes, review guided practice, watch...
CK-12 Foundation
Ck 12: Geometry: Converse, Inverse, and Contrapositive
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the converse, inverse, and contrapositive of conditional statements. Students examine guided notes, review guided practice, watch...
Oswego City School District
Regents Exam Prep Center: Types of Sentences
What is "Logic"? What is a "Mathematical sentence"? This website provides definitions of both of these terms and defines examples of mathematical sentences ("open sentence" and "closed sentence") and provides examples of each. Use the...
Oswego City School District
Regents Exam Prep Center: Negation: Not
Use this website to help you hone your critical thinking and math-problem solving skills. Learn what "Negation," is and how it applies when you are working on mathematical problems and sentences.