University of Cambridge
University of Cambridge: Nrich: Number Juggle
Use those problem solving skills to find a solution to this triangle problem. When you have your solution you can check it right on this one page website.
University of Cambridge
University of Cambridge: Nrich: Octa Space
At this one page web site see if you can solve this puzzle involving the edges of an octahedron. You will definitely need to use your problem solving and spatial reasoning skills for this!
University of Cambridge
University of Cambridge: Nrich: Games the Triangle Game
Use this game to improve your knowledge and understanding of triangles and naming vertices. Just read and follow the instructions! [Requires Java.]
Philosophy Pages
Philosophy Pages: Categorical Propositions
Introduces the method of categorical logic, as used in the deductive reasoning formalized by Aristotle. Author defines important terms very clearly and includes several good examples. A good place to start reading about logic.
PBS
Pbs Learning Media: Think Math
Think Math offers a collection of 43 KET-produced resources from Math at the Core: Middle School, including 17 Scale City videos and interactives about proportional reasoning, 14 Wild Fractions animations and games that feature visual...
ABCya
Ab Cya: 2048
2048 is a challenging number puzzle for kids and grown ups. The object is to join the numbers to get the 2048 tile. Use your arrow keys to move tiles. When two tiles with the same number touch, they merge into one!
ABCya
Ab Cya: Daisy's Plumber Puzzle
Daisy needs your help getting water to all the snoozing flowers! Use your plumber skills to rearrange the pipes so that the water flows from the faucet to the thirsty flower. The whole family will have fun with this puzzle game!
ABCya
Ab Cya: Puzzle Drops
Puzzle Drops is a fun match-3 puzzle game that the whole family will enjoy! Click/tap to rotate the puzzle piece and then drag it to the appropriate place on the game board. You'll have to use some strategy to reach the goal in each level.
ABCya
Ab Cya: Pixo Cross
Pixo Cross is an addicting puzzle game for the whole family! Your goal is to reveal the hidden picture in each level. Simply, click to fill the cells in the level. There are numbers placed along the outside of the puzzle that tells you...
ABCya
Ab Cya: Salazar the Alchemist
Salazar the Alchemist needs your help creating an ancient powerful artifact! Combine three of the same elements create a new one. Use power ups and your knowledge of magical mystical elements to create this ancient artifact!
ABCya
Ab Cya: Jelly Slice
Jelly Slice is a unique brain and puzzle game in which you use your fingers or mouse to slice the jelly and collect the stars through challenging levels. There is only one rule: Slice the jelly so that each slice contains only 1 star....
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.
Other
Speaking Effectively: Supporting the Talk
This substantial section focuses on supporting the main points of your speech or presentation. Find out how to avoid faulty reasoning and irrational appeals.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Art Class, Variation 1
Seventh graders explore proportional relationships using paint colors in this lesson.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Art Class, Assessment Variation
Seventh graders knowledge of proportional relationships is assessed in this lesson using the mixtures of paint.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Robot Races
This lesson plan allows students to explore proportional relationships using information from robot races.
TED Talks
Ted: Ted Ed: Can You Solve the Temple Riddle?
Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The walls begin to shake. The giant sandglass begins flowing with less than an...
PBS
Pbs Learning Media: Odd Squad: Which Agent Are You?
This quiz from Odd Squad will teach your child algebraic thinking by using their deductive reasoning skills. Children can take the Odd Squad Quiz and find out if they are more like Agent Olive or Agent Otto? Or maybe they're like Ms. O....
Illustrative Mathematics
Illustrative Mathematics: 7.rp Art Class, Variation 2
In this lesson plan, 7th graders explore proportional relastionships using paint colors.
Math Planet
Math Planet: Geometry: If Then Statement
If-then statements are explained throught the use of examples and a video lesson. [1:16]
Oswego City School District
Regents Exam Prep Center: Working With Sets and Venn Diagrams
A collection of activities that help students understand number relationships by using Venn diagrams to solve math problems. Practice problem solving skills in the interactive practice. Then, follow up with a classroom activity using the...
National Endowment for the Humanities
Neh: Edsit Ement: Recognizing Similes: Fast as a Whip
This lesson is designed to help students review what they have learned in earlier classes and to begin to engage with similes on a deeper and more abstract level. Students will define similes and identify examples; read and analyze the...
National Endowment for the Humanities
Neh: Edsit Ement: Animal Farm: Allegory and the Art of Persuasion
This lesson plan will introduce learners to the concept of allegory by using George Orwell's widely read novella, Animal Farm. Through this novel, students will learn what an allegory is, the rhetorical components of an allegory, and...