American Geosciences Institute
American Geosciences Institute: Earth Science Week: Gis and Careers
Students learn about GIS technology for solving problems and learn how employers seek workers who know how to make good decisions in a complex world.
Khan Academy
Khan Academy: Word Problems With Mass
In this exercise, students practice arithmetic word problems with mass. Students receive immediate feedback and have the opportunity to get hints, watch a tutorial video, and try questions repeatedly. CCSS.Math.Content.3.MD.A.2 Measure...
Other
Basket Math Interactive
Explore more than twenty math concepts such a perimeter, rounding, exponents, decimals, sign numbers, and more using this interactive basketball game. A Spanish version is also offered. Students results are tabulated daily.
TED Talks
Ted: Ted Ed: Can You Solve the Pirate Riddle?
Amaro, Bart, Charlotte, Daniel, and Eliza have struck gold- a chest with 100 coins. But now, they must divvy up the booty according to the pirate cod. Can you help come up with the distribution that Amaro should propose to make sure he...
TED Talks
Ted: Ted Ed: Check Your Intuition: The Birthday Problem
Imagine a group of people. How big do you think the group would have to be before there's more than a 50% chance that two people in the group have the same birthday? David Knuffke explains how the birthday problem exposes our often-poor...
TED Talks
Ted: Ted Ed: Can You Solve the Seven Planets Riddle?
Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you must apprehend them before their reinforcements arrive. Of course, the fugitives won't just stay put- they'll try to dodge you by...
TED Talks
Ted: Ted Ed: Can You Solve the Buried Treasure Riddle?
After a massive storm tears through the Hex Archipelago, you find five grizzled survivors in the water. As an act of gratitude for saving them, they reveal a secret- the island they were just on holds some buried treasure. But when the...
TED Talks
Ted: Ted Ed: Can You Solve the Egg Drop Riddle?
The city has just opened its one-of-a-kind Faberge Egg Museum, with a single egg displayed on each floor of a 100-story building- and the world's most notorious jewel thief already has her eyes on the prize. Can you help the thief...
TED Talks
Ted: Ted Ed: Can You Solve the Dark Coin Riddle?
As a world-renowned treasure hunter, you have been searching for the legendary dungeon containing the stash of ancient Stygian coins. The wizard who owns the castle has even allowed you to have them, on one condition you must solve his...
TED Talks
Ted: Ted Ed: Can You Solve the Leonardo Da Vinci Riddle?
You've found Leonardo da Vinci's secret vault, secured by a series of combination locks. Fortunately, your treasure map has three codes: 1210, 3211000, and, the last one appears to be missing. Can you figure out the last number and open...
TED Talks
Ted: Ted Ed: Can You Solve the Rebel Supplies Riddle?
You're overseeing the delivery of supplies to a rebel base in the heart of enemy territory. To get past customs, all packages must follow this rule: if a box is marked with an even number on the bottom, it must be sealed with a red top....
Goodwill
Gcf Global: Simplifying Expressions
In this tutorial, students learn how to simplify algebraic expressions.
TED Talks
Ted: Ted Ed: Can You Solve the Alien Probe Riddle?
Your team has developed a probe to study an alien monolith. It needs protective coatings in red, purple and green to cope with the environments it passes through. Can you figure out how to apply the colors so the probe survives the trip?
TED Talks
Ted: Ted Ed: The Myth of Hercules: 12 Labors in 8 Bits
Hercules, stricken with a temporary curse of madness, has just committed the most unspeakable crime imaginable. Seeking to atone for the deaths of his family, Hercules must complete twelve impossible tasks that pit him against invincible...
TED Talks
Ted: Ted Ed: Can You Solve the Killer Robo Ants Riddle?
The good news is that your experimental robo-ants are a success. The bad news is that you accidentally gave them the ability to shoot deadly lasers and you can't turn it off. Can you stop them from escaping their habitat before the...
TED Talks
Ted: Ted Ed: Can You Solve the Stolen Rubies Riddle?
Townspeople are demanding that a corrupt merchant's collection of 30 rubies be confiscated to reimburse the victims of his schemes. The king announces that the fine will be determined through a game of wits between the merchant and the...
Illustrative Mathematics
Illustrative Mathematics: Bobbie Bear's Buttons
The purpose of this task is for young scholars to find different pairs of numbers that sum to 4. Students will solve an everyday problem in their head and then model their solution using counters. They can represent their solutions using...
Illustrative Mathematics
Illustrative Mathematics: The Napping House
The teacher reads "The Napping House" to the class, stopping each time a person or animal gets into the bed so the students can add a counter to the ten-frame. Ten-Frame printable is included.
TED Talks
Ted: Ted Ed: Can You Solve the Time Travel Riddle?
Your professor has accidentally stepped through a time portal in his physics lab. You've got just a minute to jump through before it closes and leaves him stranded in history. Your only way back is to grab enough colored nodules to...
TED Talks
Ted: Ted Ed: Can You Solve the Troll's Paradox Riddle?
You and your brother have discovered another realm and set off exploring the new wonderful world. Along the way, you see a troll catching creatures in an enormous net. The troll agrees to release the creatures if you can come up with a...
TED Talks
Ted: Ted Ed: Can You Solve the Multiplying Rabbits Riddle?
After years of experiments, you've finally created the pets of the future- nano-rabbits! They're tiny, they're fuzzy and they multiply faster than the eye can see. But a rival lab has sabotaged you, threatening the survival of your new...
TED Talks
Ted: Ted Ed: Can You Solve the Secret Werewolf Riddle?
You're on the trail of a werewolf that's been terrorizing your town. After months of detective work, you've narrowed your suspects to one of five people. You've invited them to dinner with a simple plan: to slip a square of a rare...
TED Talks
Ted: Ted Ed: Can You Solve the Vampire Hunter Riddle?
You've stealthily descended into the darkness of a vampire cave, setting a sequence of mirrors as you go. When the sun reaches the right angle in the sky, a beam of light will ricochet along the mirrors, strike a diffuser, and illuminate...
TED Talks
Ted: Ted Ed: Can You Solve the Jail Break Riddle?
Your timing made you and your partner infamous bank robbers. Now, you need to use that timing to break out of jail. Your partner is about to flash you a signal, and exactly 45 seconds later the electric fence circuit will short out. Then...