### tags:4.NBT

tags: 4.NBT
We found 26 post available for you

#### Holiday Movies

Grinch Vectors by Vecteezy Which movie do you think is the highest grossing holiday movie of all time (click on the movie's name below to see its trailer)? Home Alone,  The Grinch, ...

#### Will sending you back to school this year cost a fortune?

With high inflation rates, supply shortages, and rethinking what is essential spending, back to school spending might be different this year. Back-to-school spending is huge and students mi...

#### Women's World Cup - How many matches are left?

The first round of Group play has finished and now the remaining teams start the second round of play. The teams have already played a lot of matches. How many? And, how many matches are left? ...

#### It's opening weekend for Barbie

This movie is supposed to be nostalgic, clever, funny, and wildly entertaining. We've written an activity that lets students express their excitement (or lack of) in seeing this new movie, st...

#### The 8th billion baby

How fast is the world's population growing? Will the world's population size increase indefinitely?  Are all countries' populations increasing at the same rate? What are some of the...

#### The Algebra of Magic Squares

Have you seen magic squares before? How could a teacher use these puzzles to help students with different number skills? How few blank cells could you leave? Are there any special cel...

Jennifer Fairbanks from Hopkinton, MA sent us this picture of the cookies that she baked in 4 hours using 13 eggs and 5 cups of sugar. Do you see some math here? Do you have an add...

#### Mental math tricks - part 2

36 x 25 = 900     480 x 25 =12,000    924 x 2.5 = 2,310 Can you see any tricks for doing these calculations in your head? An editable Word docx, solutions/hints, and a PowerPoi...

#### Refugees from Ukraine

We are hearing a lot about the war in Ukraine. Civilian Ukrainians are fleeing the war zone in order to remain safe and find food and housing.  How do these numbers compare with other tragic ev...

#### When will WORDLE run out of words?

Have you played it yet? If so, do you play it every day? Why do you suppose that this game is so popular? When will there be no new 5-letter words to try?