### Number Sense

We found 31 post available for you

#### What is a quantum dot?

In this activity, students work through the nomenclature to understand the possibilities of nano science and quantum dots.  Questions that are answered; How many nanometers are in a millime...

#### Heating with wood - What's a cord?

Do you know what a cord of wood looks like? What size stack is that? What's a thrown stack? What's the dog's name that is standing in front of the wood? How long can I heat my house with that much fue...

#### Lego Fireman +

At the Toys R Us store, we saw an amazing LEGO creation.  He was a life-sized LEGO fireman with a walkie-talkie, an oxygen tank and even an oxygen...

#### 200 people

Show your students the video and have a discussion! What do you notice?Why did someone create this GIF?What's the point? For Adventurer members we have our solutions.

#### Wheel of Theodorus

Bring a little art into your math class as you begin to use the Pythagorean theorem and your students first meet irrational numbers. For Adventurer members we have an editable Word docx and s...

#### 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 12th at 2 am, we change our clo...

#### How many gumballs are there?

Gumball Machine Problem from Brian Marks on Vimeo This problem is a little puzzle to get your students thinking, estimating, and calculating. We've given you a pdf file w...

#### How big of a crepe can you make?

At Costco you can buy this huge tub of nutella.  It contains nearly 7 pounds of chocolaty-hazelnut spread. We use nutella to make banana/nutella crepes.  How long will that tub last u...

#### Wrapping presents on the diagonal

﻿ Dr. Sara Santos is a popular mathematician and speaker on mathematics.  She has worked out a method for wrapping boxes (rectangular prisms) as efficiently as possible. (W...

#### 2 New Macy's Parade balloons

As the Macy's Parade returns to public viewing, here are two balloons that Macy's artists have added. Can you figure out their dimensions? Macy's give their dimensions in bicycle lengths, taxi w...