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Daylight savings time
Daylight savings time

Updated and improved! Is Daylight savings time helpful? How does it make you feel? "Spring forward, fall back" Early Sunday morning, March 12 th at 2 am ,...

Algebra Number Sense Grades 5–HS
I need help raking my leaves
I need help raking my leaves

Brian has spent too much time thinking about his leaves. He's worried about raking them alone and thinking about how long the job would take if people helped....

Algebra Number Sense Grades 5–HS
Inflation and the cost of gasoline
Inflation and the cost of gasoline

In 1980, one gallon of gasoline costs $1.22. Today's prices are a lot higher. Is that because the price has gone up or because in 1980 you could...

Algebra Number Sense Grades 5–7
Monopoly
Monopoly

In the board game, Monopoly, does a property’s distance from GO correlate to its rent when you land on it? Using Brian’s spread sheet (list of properties, distance...

Algebra Number Sense Grades 5–HS
How much did the tooth fairy give you when you lost a tooth?
How much did the tooth fairy give you when you lost a tooth?

Think back to when you were loosing your baby teeth. What was the going tooth rate in your house? Do you think that, on average, you were paid...

Algebra Number Sense Grades 4–6
One harrowing adventure
One harrowing adventure

Can you imagine being stuck in the dark for such a long time? How do all of the numbers play out? In this activity, students get a chance...

Number Sense Current events Grades 5–HS
Pokémon GO!  I should have invested
Pokémon GO! I should have invested

Pikachu Pokémon GO is all the rage. News reports show people glued to their smart phones as they travel to nearby landmarks where virtual critters appear and need...

Algebra Number Sense Grades 5–HS