Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Number Riddles Numbers Up to 100000

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students practice with whole number place value by solving riddles.
Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Bridge Riddle?

For Students 9th - 10th
Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever with the skull symbol just to see what it did probably wasn't so smart either. But now is not the time for regrets because you need to...
Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Temple Riddle?

For Students 9th - 10th
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...
Unit Plan
TED Talks

Ted: Ted Ed: Marcus Du Sautoy: Symmetry, Reality's Riddle

For Students 9th - 10th
Oxford mathematician, Marcus du Sautoy, presents a brief look of the invisible numbers that unite all symmetrical objects as he discusses prime numbers, symmetry groups, higher dimensions and other stumpers. [18:20]
Unit Plan
PBS

Pbs: Logical Leaps: Graphing Inequalities: Rational Numbers

For Students 6th - 8th Standards
In this interactive, use logic to solve three riddles involving a jumping wallaby competition. Then, using knowledge of inequalities and rational numbers, place the wallabies on the correct range from -5 to 5 on the number line. Numbers...
Unit Plan
PBS

Pbs: Logical Leaps: Adding Fractions and Decimals From 0 to 1 on the Vertical Number Line

For Students 6th - 8th
In this interactive, use logic to solve riddles involving flea circus high jumps. Then, add two consecutive jumps and place them on a vertical number line. This often requires you to find equivalent fractions with common denominators....
Unit Plan
PBS

Pbs: Logical Leaps: Rational Numbers on the Number Line

For Students 6th - 8th
In this interactive, use logic to solve riddles involving a wallaby jumping contest. Then, place each contestant's jump-a fraction, mixed number, or decimal between -5 and +5-at the correct point on the number line. Backward jumps are...
Unit Plan
PBS

Pbs: Logical Leaps: Fractions and Decimals From 0 to 1 on the Vertical Number Line

For Students 6th - 8th
In this interactive, use logic to solve riddles involving a flea-jumping contest. Place each contestant's jump, represented by either a fraction or a decimal in both feet and inches, at the correct point on the vertical number line....
Unit Plan
PBS

Pbs: Logical Leaps: Graphing Inequalities: Fractions, Mixed Numbers, and Decimals

For Students 6th - 8th
In this interactive, use logic to solve three riddles involving a jumping frog competition. Then, using knowledge of inequalities and rational numbers, place the frogs in the correct range from 0 to 5 on a number line. The fractions,...
Unit Plan
PBS

Pbs: Logical Leaps: Graphing Inequalities: Fractions and Decimals From 0 to 1

For Students 6th - 8th
In this interactive, use logic to solve three riddles involving high-jump performers in a flea circus. Then, using knowledge of inequalities, place the fleas in the appropriate range on a vertical number line. Numbers are randomized so...
Unit Plan
PBS

Pbs: Logical Leaps: Adding Rational Numbers on the Number Line

For Students 6th - 8th
In this interactive, use logic to solve riddles involving a wallaby jumping contest. Add two consecutive jumps and place them on a number line, finding equivalent fractions and common denominators to do so. Backward jumps represent...
Unit Plan
PBS

Pbs: Logical Leaps: Fractions, Mixed Numbers, and Decimals on the Number Line

For Students 6th - 8th
In this interactive, students use logic to solve three riddles involving a frog jumping contest and then place the contestants' jumps at the correct points on the number line. Numbers are randomized so that the frogs' placements on the...
Unit Plan
PBS

Pbs: Logical Leaps: Adding Fractions, Mixed Numbers, and Decimals on the Number Line

For Students 3rd - 5th
In this interactive, use logic to solve riddles involving a jumping frog contest. Add two consecutive jumps by one frog and place the jumps on the number line, finding equivalent fractions with common denominators to do so. Numbers are...
Unit Plan
PBS

Pbs: Using the Pythagorean Theorem on the Cartesian Graph

For Students 6th - 8th Standards
In this interactive, students use logic and mathematical skill to place animals at the correct points on a Cartesian graph representing the cardinal directions. Then, they use the Pythagorean theorem to determine the distances between...
Unit Plan
PBS

Pbs Learning Media: Locating Points on the Cartesian Graph

For Students 3rd - 8th Standards
In this interactive, students use clues and logic to plot the location of aquatic animals on a Cartesian graph that represents the four cardinal directions. The three riddles in the interactive, including one that requires students to...
Unit Plan
PBS

Pbs: Graphing a System of Equations

For Students 6th - 8th
Solve a number riddle by finding the point of intersection for two lines. This video focuses on finding the solution for a system of equations, they are represented as an algebraic expression and a set of linear equations that are...
Unit Plan
PBS

Pbs: Horizontal and Vertical Distances on the Cartesian Graph

For Students 3rd - 8th Standards
In this interactive, students use logic and mathematical skill to place aquatic animals at locations on a Cartesian graph with cardinal directions. Then, they determine both the vertical and horizontal distances between points. The...

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