US Department of Education
Helping Your Child Learn Math: Math for the Fun of It
This compilation of math activities engages parents and children in the use of math whenever they are at home. Packed with concise, high interest activities, related illustrations, detailed "parent pointers," and easy to following...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: The Value of Two Column Proofs
This site explains why we prove things. The explanation gives real world scenarios and an everyday example of why we should learn how to prove things.
Other
Problems in the Points Contest of Ko Mal
Learn about the annual KoMal competition in mathematics, physics, and information technology, and challenge your ability to solve problems involving advanced algebra, logic, and other related topics through the tests provided at this site.
Mensa Espana
Mensa Espana: Lista De Problemas
Spanish content. An extensive compilation of logic and reasoning problems approved by MENSA. Problems are arranged according to difficulty. Each problem is linked to it's solution. A terrific resource for extention and supplemental...
Math Playground
Math Playground
A collection games, word problems, logic puzzles, and math videos that elementary and middle school students can practice their math skills. Model math problems using blocks, work with online flash cards, complete worksheets, and more.
Oswego City School District
Regents Exam Prep Center: Biconditional: If and Only If
Students studying logic, who already know what conditionals are and how to solve them, are ready to work with biconditionals. This website provides a definition of "Biconditional," and includes examples of biconditionals that are "Used...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: 8th Grade Logic
Explains what conditional statements are in mathematical proofs, explaining an if then clause, be sure to read the second response to the initial question if this topic appeals to your curiosity.
PBS
Pbs Learning Media: Sesame Street
Do you know how to get to Sesame Street? This collection is designed to engage preschoolers in everyday learning by teaching core skills in Math, Literacy, STEM, and Social and Emotional Development. Here you'll find hundreds of videos,...
Ministerio de Educacion, Cultura y Deporte (Spain)
Centros5: Rincon Matematico 2000
Enjoy many of the math poems, puzzles and tricks in this math corner.
Other
Juegos, Acertijos, Y Recreaciones Matematicas
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.
Other
Brain Food: Puzzles for the Brain to Gnaw On
This site includes many games and puzzles ranging from word games to logic problems to riddles. These puzzles can be completed on line and offer interactive hints and solutions.
Oswego City School District
Regents Exam Prep Center: Conditional: If, Then
At this website, learn terms "Conditional," and "Implication," and their relationship to mathematics and logic. Includes examples of "If, then," sentences that are both "True," and "False," as well as a "Truth table."
Other
Science Gems: Mathematics
This site has many links to math topics including pre calculus and calculus
Cut the Knot
Cut the Knot!: Proofs in Mathematics
This site provides an explanation of mathematical proofs. It also has links to different types of proofs.