Month:

What’s the Really Big Number here?

  • September 9

Elementary students in the after school club came up with ideas for a math walk around their campus. In this math walk stop, they explore the hallway leading to the school cafeteria through their math lens. Research conducted during this semester-long afterschool club led to this research paper: Wang, M., Walkington, C., & Dhingra, K. (2021). Facilitating Student-Created Math Walks, Mathematics Teacher: Learning and Teaching PK-12, 114(9), 670-676. Retrieved Sep 17, 2021, from... 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 Different Ways Can You Count?

  • September 9

Dr. Glen Whitney, founder of the National Museum of Mathematics in New York and walkSTEM advisor, admires the modern structure of a high rise building in the Arts District and highlights the fact that there are many different ways to look at a mathematical problem. These methods may include: decomposition of the larger area into smaller rectangular areas and finding the larger area and then subtracting the areas of each rectangular array. He illustrates these methods by observing the windows on... 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

How Many Circles Make Up this Pattern?

  • September 9

There’s a pattern of overlapping circles in the ground pavement around the medical center – but is there any way to estimate how many circles there are? We investigate a few different methods of figuring it out! Join talkSTEM and UT Southwestern faculty and grad students as they explore the STEM concepts on their campus.... CONTINUE READING

How Many People Can Fit on the Observation Deck?

  • September 9

At Camp Whispering Cedars, Girl Scouts climb a winding series of steps to reach the top of an observation deck, where they can stargaze or have meetings. We wonder how they might estimate exactly how many people could have fun stargazing sleepover party on the deck! Supplementary Activity Guides for this video to extend student learning for K-12 grade levels are freely available here: https://talkstem.org/tal... CONTINUE READING

How Many People Fit on a 737 Plane?

  • September 9

We wonder what the maximum number of people is that could fit on board the 737 people we are walking through at the museum? How can we come up with a good estimate? We use number arrays to come up with our estimate and walk you through our thinking. Supplementary Activity Guides to extend student learning at the Frontiers of Flight Museum for K-12 grade levels are freely available here:... CONTINUE READING