Month:

Using arrays, how many windows are there?

  • September 9

What's the best way to figure out the number of windows on the Texas School Book Depository? Math, of course! Watch the video to see how we applied the concept of arrays to answer this question. This video was supported by City of Dallas Office of Cultural Affairs.... CONTINUE READING

How can we measure arches and lines?

  • September 9

Over 7 million people visit the West End Historic District every year! What if they all stood in line to visit? What would that look like? We use math to help us understand this gargantuan number! This video was supported by City of Dallas Office of Cultural Affairs.... CONTINUE READING

What is the speed of the water?

  • September 9

Ronald Kirk Bridge is a pedestrian bridge over the Trinity River in Dallas, connecting downtown Dallas and West Dallas. It is over 2,000 feet long and 60 feet wide. At the Ronald Kirk Bridge, the talkSTEM team found a natural whirlpool in the Trinity River. The video explores a strategy for estimating the speed of water. What other strategies could you use to measure the speed of a liquid? What about objects traveling through air instead of water? At talkSTEM, we know that math isn't always perf... CONTINUE READING

How many people can fit in the gym?

  • September 9

St. Philip's Academy teachers use math to verify or refute the claim that 300 billion people attended a recent basketball game. This video was supported by City of Dallas Office of Cultural Affairs. Thanks to our partnership with Mathigon, you can enjoy this walkSTEM stop using learning extensions in the Polypad interactive virtual whiteboard. You can visit this stop's Polypad here: Polypad #1: How many r... CONTINUE READING

How tall could the tower be?

  • September 9

High school members of the Women in STEM club in Greenhill School stop at the playground on their math walk to share some math with the second graders. We have found a really big number of bricks in our pathway. How can we estimate how many there are? If we created a tower out of the bricks in the pathway, how tall would it be? We use number arrays and multiplication to find out. This content was made by community members from the Greenhill School - we invite all interested groups to reach out a... CONTINUE READING

What is the Really Big Number Here?

  • September 9

Dr. Glen Whitney, founder of the National Museum of Mathematics in New York and walkSTEM advisor, has fun with a really big number by estimating the number of stones that were used to build the sidewalk on Flora street. Using number arrays, estimation, and collaborative groupwork, Dr Whitney and friends come up with their estimate and then visualize how tall of a tower these stones would be if they were to be stacked up vertically. Can you guess? Supplementary Activity Guides for this video to e... CONTINUE READING

How Many are in the Array?

  • September 9

The television screens laid out in the Dallas Public Library Louise Kahn Pavilion are arranged in an array, a regular grid of objects. This can make calculating how many screens are in the are the array a quick process – join us as we discuss the techniques to do so!... CONTINUE READING