Month:

Recipe Ratios: Which recipe uses more chiles?

  • September 9

When using recipes, determining how much of each ingredient is needed is an important task - particularly if you're making an amount different than what the recipe directly instructs! By looking at two different recipes for salsa, and using ratios and unit conversions to make them more easily comparable, we can begin to determine how much of these wonderful garden ingredients we'd need to use for each dish. This material is based upon work supported by the National Science Foundation under Grant... CONTINUE READING

How can we estimate the amount of produce in a garden?

  • September 9

In order grow plants efficiently, making certain estimations is valuable - how well plants will grow, how much produce each plant will give use, or, even more fundamentally, how many plants we can fit in a given plot of land. Taking information we know about marigolds as an example, we showcase ways to determine these sorts of important predictions. This material is based upon work supported by the National Science Foundation under Grant DRL 2115393. Any opinions, findings, and conclusions or re... CONTINUE READING

What geometric patterns can we identify on a leaf?

  • September 9

A mathematical pattern is any sort of repeated property - something occurs frequently in nature! Taking a look at magnolias in particular, we identify branching patterns in leaf veins, and their degree of sub-level repetition. This allows us to understand various geometric concepts. This material is based upon work supported by the National Science Foundation under Grant DRL 2115393. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s)... CONTINUE READING

How slow can you go?

  • September 9

Join these young scholars from Girls Inc. Metropolitan of Dallas as they explore their playground. This content was made by community members from Girls Inc Metropolitan of Dallas - we invite all interested groups to reach out and find more information on creating content of their own with us at talkstem.org/create-your-own-walkstem !... CONTINUE READING

What is the pattern in the climbing wall?

  • September 9

Join these young scholars from Girls Inc. Metropolitan of Dallas as they explore their playground. This content was made by community members from Girls Inc Metropolitan of Dallas - we invite all interested groups to reach out and find more information on creating content of their own with us at talkstem.org/create-your-own-walkstem !... CONTINUE READING

Is it possible to measure an animal’s behavior?

  • September 9

Animals have a wide varieties of behaviors, many of which can be difficult to analyze. To make animal behavior research easier, scientists use ethograms - tables of possible behaviors that they can check off as the observation goes on. The ethogram used by zoo employees to study their elephants is discussed, and ways of making use of and presenting that data investigated. This material is based upon work supported by the National Science Foundation under Grant DRL 2115393. Any opinions, findings... CONTINUE READING

What’s the Mathematical Mystery Here? Fountain

  • September 9

Join Dr. Glen Whitney, Founder of the National Museum of Mathematics, as you discover the mystery hidden in a seemingly regular fountain at NorthPark Center. This video was supported by NorthPark Center. Supplementary Activity Guides for this video to extend student learning for K-12 grade levels are freely available here: https://talkstem.org/talkstem-activity-guides/... CONTINUE READING

Which mass travels faster?

  • 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, talkSTEM members, Michael and Mary, did an experiment to see which would travel down the Trinity River the fastest - the thicker or thinner stick. Make your hypothesis - would heavier or lighter mass travel faster? Watch the video to find out!... CONTINUE READING

How tall are the flagpoles?

  • September 9

Towering over Dallas City Hall Plaza are 3 flag poles. How do we use similar triangles and shadows to determine their height? This video was supported by City of Dallas Office of Cultural Affairs.... CONTINUE READING

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