Month:

What Angles do We Make when We Walk?

• September 9

This video was features two IF/THEN® ambassadors, Dr. Julie Mirpuri and Dr. Kirsten Tulchin-Francis. Dr. Julie Mirpuri is a Physician Scientist at UT Southwestern Medical Center and Dr. Kirsten Tulchin-Francis is the Director of Movement Science at Texas Scottish Rite Hospital for Children and Professor at UT Southwestern Medical Center. Julie and Kirsten answer the questions: What angles do we create walking? How are they important for getting where we need to go? Can you try walking around wi... 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

What determines where leaves are positioned on branches?

• September 9

Leaves are what plants use to gather sunlight, necessary for plants to grow and thrive. This means that it is to a plant's advantage if their leaves' position is such that all leaves receive the most possible sunlight - minimizing overlaps and shadow wherever possible! Different plants use different strategies and arrangements to make this happen, though there are some common trends across many different species. By using a protractor to measure the angles between leaves, we can tease out some o... CONTINUE READING

Is there anything mathematical about a visual pattern like the giraffe coat pattern?

• September 9

The spots on a giraffe's coat are made up of various geometric patterns,. Each giraffe has their own unique pattern of spots; additionally, each type of giraffe has their own pattern-determining rules. Properties of these patterns, and differences between them, are discussed, as well as how these differences can be used to identify different types of giraffe. This material is based upon work supported by the National Science Foundation under Grant DRL 2115393. Any opinions, findings, and conclus... CONTINUE READING

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

Is there a mathematical pattern to the way that penguins use their nests in South Africa?

• September 9

The guano that African penguins use as a nesting resource has depleted in recent years; alternate nesting methods, including man-made artificial nests, are being tested out at Dallas Zoo. To track how well these nests work, the amount of eggs laid month by month must be compared to that of natural nests. Analysis of these patterns is valuable information for helping these penguins continue to survive! This material is based upon work supported by the National Science Foundation under Grant DRL 2... CONTINUE READING

Do animals all walk with the same pattern, or are there different walk patterns?

• September 9

Quadrupeds – animals that walk on four legs – move their limbs in many different patterns as they travel. These walking patterns are known as gaits, and each type of gait can be described mathematically and compared to gain insight into animal locomotion! 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) and do not necessarily r... 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

What shapes are in turtles and other living things? – Turtle Pond

• September 9

Do you know why turtles' shells are shaped the way they are? What about the pattern on the shell? Join Dr. Glen Whitney, Founder of the National Museum of Mathematics, as you discover different shapes found in turtles at NorthPark Center and other living things. 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:... CONTINUE READING