Nancy Castaldo » STEM Tuesday

Last night, my son asked for something extraordinary. He requested I read him a goodnight story. From my shelves, I pulled out a picture book, The Keeping Quilt by Patricia Polacco. At first glance, this might not seem that unusual. Except my son is a ninth grade, a newly minted 15-year-old, and I couldn’t more proud. He wasn’t afraid to ask for what he needed– the comforting ritual of a bedtime story read aloud by a parent. He wasn’t embarrassed. His ears didn’t pinken. This wouldn’t have happened pre-COVID. Well, it would have but like six or seven years ago. This was not an isolated incident. My oldest son, who graduated from college last year and is a software engineer for a celebrated car company, is back home and after reading some non-fiction, picked up The Subtle Knife by Phillip Pullman. My son had first read this very book and the rest of His Dark Materials series when he was...

The Writer’s Walk: Nurturing Creativity in Difficult Times Every day, as part of my writing process, I take a walk outside among Joshua Trees and, in spring, golden California poppies. Often a writing problem weighs on my mind: an opening that’s not quite right, a subplot that’s stumbling, a structure that’s just not working. As my feet pound the ground, my brain is only partially occupied by the scurrying rabbits and calling quail. My mind wanders just as I do. And in those moments I often have a breakthrough, an “aha moment” that leaves me eager to return to my manuscript. We are living during a difficult time when so many of us are encouraged to stay indoors to keep ourselves, our friends, and neighbors safe. Yet one thing we are still allowed to do is to go outside for exercise. And we need to. Humans have a symbiotic relationship with...

As I write this post, my community is still under a Stay-At-Home order, and has been for several weeks. There has been a lot of debate about when and how we should open up different areas of the country. Communities are trying to balance the health of businesses and the economy with the health of people. In a way, the two interests are intertwined in a close and long-term relationship. Which is a lot like this month’s topic – symbiosis. Symbiosis is when two dissimilar organisms are closely associated with each other. Sometimes both benefit from the relationship. Other times, only one benefits. The books we’re highlighting this month dive into how symbiosis works. They are a great starting point for different sciences activities and discussions in the classroom. Natural Attraction: A Field Guide to Friends, Frenemies, and Other Symbiotic Animal,  by Iris Gottlieb Watercolor illustrations combine with a humorous,...

Symbiosis is a close and long-term biological relationship between two different species. Sometimes both benefit. Sometimes only one benefits. So you might want to study up before you develop that new “friendship” … Natural Attraction: A Field Guide to Friends, Frenemies, and Other Symbiotic Animal,  by Iris Gottlieb Watercolor illustrations combine with a humorous, scientific text to examine thirty-five odd and unusual symbiotic animal, plant, and bacteria relationships. It includes statistics, graphs, takeaways, and fun additional facts about mutualism, commensalism, and parasitism.   Symbiosis, by Alvin Silverstein Photographs and a sprinkling of fun fact sidebars enhance the examination of plants, animals and fungi partnerships (both beneficial and necessary), symbiosis of numerous parasites and microorganisms (including Ebola and SARS), and the possibility of symbionts from space. The engaging text is supplemented with scientific terms, a glossary, and further research suggestions.   Partners in the Sea, by Mary Jo Rhodes and David...