[Free Registration/Login may be required to access all resource tools.] This concept introduces students to deductive reasoning using the laws of detachment, contrapositive, and syllogism. Students examine guided notes, review guided...

If-then statements are explained throught the use of examples and a video lesson. [1:16]

[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...

[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...

[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...

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.

Learn what a conjunction is and why it is important to know what a conjunction is when using logic to solve mathematical problems. This website includes examples of the conjunction "and" used in mathematical sentences and a "truth table."

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...

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.

Mathchallenge offers this mathematical reasoning problem, a one star problem requiring nothing more than a logical mind and paper and pencil, to deduct the painted faces problem

Students are given a conitional statement and are to determine which choice is the converse of the statement.

What happens when there is not enough information to solve a problem? Find out at this test prep site, how missing information or "open sentences" can change the value or truth of a math equation. Practice understanding and applying this...

Sharpen your logic and geometry skills by finding the area of a triangle. Solution available.

In Spanish. A variety of logic problems, including puzzles and word problems with links to the answers. An excellent site to engage Spanish speaking students.

What is a "Disjunction"? What does "or" mean? This website answers these questions and provides examples of disjunctions used in mathematical sentences and problems.

On this one page interactive website expand your logic, Motion Geometry and pattern recognition knowledge while working on this challenge. The solution is available to double check your solution.

Use this game to improve your knowledge and understanding of triangles and naming vertices. Just read and follow the instructions! [Requires Java.]

A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to solve how many tiles are needed to complete the kitchen floor pattern.

A "one star" geometry problem that requires finding the visual pattern and applying logic with pattern recognition to solve this number of triangles problem.

A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to find the patterns.

A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to solve.

A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to find the perimeter from the sequence.

A "one star" geometry problem that requires finding the visual pattern and applying logic with basic math skills to find triangles in a pattern.

Is it better to by block ice or crushed ice? Use your logical reasoning and measurement skills to solve this challenge that compares surface area of block ice and the same block cut into three cubes. A one page activity from the NCTM...