Lesson Plan
Curated OER

Language Arts: Five Senses Walk

For Teachers 1st
First graders take a discovery walk around the school. They use their observations to compose a class book about their school.
Activity
Scholastic

Scholastic: Math Maven's Mysteries: The Cuckoo Caper

For Students 3rd - 8th
The famous Clockenheimer Cuckoo is missing from Clockenheimer Clocks on Main Street! Help Math Maven get it back by solving a math riddle.
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.
Activity
Scholastic

Scholastic: Math Maven's Mysteries: The Case of the Mysterious Money Trail

For Students K - 1st Standards
Pat Tern has been buying items all around town using counterfeit money. Help Math Maven identify a pattern to catch her before she deposits fake money into the Cashflow Bank.
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...
Activity
Other

Matematicas Para Ninos: El Huevo De Chocolate (The Chocolate Egg)

For Students Pre-K - 1st
This resource provides basic math activities in Spanish. Topics include division, math riddles and correcting equations.
Website
Maths Challenge

Maths challenge.net: Problem Solving Database

For Teachers 9th - 10th Standards
Need some challenging problem-solving work for your students in the following areas: Discrete, Geometry, Numbers, and Code Breaking? This is the place for an enormous database of problems aimed at high school age students. They are...
Activity
Ministry of Education and Employment of Spain

Red Escolar: Problemas De Holmes 2002

For Students 3rd - 5th
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
Activity
Instituto Latinoamericano de la Comunicacion Educativa

Red Escolar: Problemas De Holmes 2006

For Students 3rd - 5th
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
Activity
Instituto Latinoamericano de la Comunicacion Educativa

Red Escolar: Problemas De Holmes 2003

For Students 3rd - 5th
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
Activity
Instituto Latinoamericano de la Comunicacion Educativa

Red Escolar: Problemas De Holmes 2004

For Students 3rd - 5th
In Spanish. Practice your mental math skills with this site. You will find different activities for every month of the year. Different levels of difficulty and suggested time limit for each activity are also provided.
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]
Website
Agnes Scott College

Agnus Scott College: Biographies of Women Mathematicians

For Students 9th - 10th
Use this site to learn about the women behind the math. Lawrence Riddle, professor of mathematics at Agnes Scott College, created this site as a tribute to women who have made accomplishments in the world of mathematics.
Activity
University of Cambridge

University of Cambridge: Nrich: Romantic Riddle

For Students 3rd - 8th
See if you can figure out the solution to this romantic riddle. You can find the solution right at this one page website once you have formulated your own.
Interactive
PBS

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

For Students 6th - 8th Standards
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...
Interactive
PBS

Pbs Learning Media: Logical Leaps: Rational Numbers on the Number Line

For Students 6th - 8th Standards
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...
Interactive
PBS

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

For Students 6th - 8th Standards
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....
Activity
Dartmouth College

Dartmouth College: Mqed: The Hand and the Key

For Students 9th - 10th
The learning resource explores the mathematical riddles embedded in the walls of a palace.
Website
Other

Northpole: Santa's Classroom

For Students Pre-K - 1st
Visit Santa's classroom where you will find fun-filled and engaging activities, printable worksheets, interactive games, and more. A great resource for parents and teachers.
Activity
Disfruta Las Matematicas

Disfruta Las Matematicas: Puzzles Con Numeros

For Students 9th - 10th
This site contains many puzzles dealing with numbers. It could be used as fun supplementary materials. Solutions are also provided.
Activity
Disfruta Las Matematicas

Disfruta Las Matematicas: Puzzles De Logica

For Students 9th - 10th
This site contains many logic puzzles. It could be used as fun supplementary materials. Solutions are also provided.
Activity
Cut the Knot

Cut the Knot: 3 Glasses Puzzle

For Students 9th - 10th
Challenge students to a well-known riddle involving three different-sized glasses, some water, and a goal of a certain amount to be measured out. At this site, students can actually "pour" the water back and forth to solve the problem.
Website
Other

Brain Food: Puzzles for the Brain to Gnaw On

For Students 9th - 10th
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.

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