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ASU team gets kids excited about science with red cabbage and Swiss cheese

Engineering, business and biology collaborate to promote STEM to middle schoolers


3D reconstruction renderings of red cabbage and Swiss cheese

3-D reconstruction renderings of red cabbage and Swiss Cheese. Courtesy of Konrad Rykaczewski

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January 08, 2018

You never forget the first time you look through a microscope.

Engaging young students in science and technology is a far easier task when they have hands-on experiences so they can explore firsthand.

Konrad Rykaczewski, an assistant professor of mechanical engineering at Arizona State University’s Ira A. Fulton Schools of Engineering, worked with Maria Wieczynska, an assistant professor in ASU’s W. P. Carey School of Business, and Abigail Howell, a molecular and cellular biology graduate student in ASU’s College of Liberal Arts and Sciences, to create a demonstration that encourages students' natural fascination with scientific phenomena.

The activity that the team came up with was a simple, scalable, low-cost and hands-on project that introduces students to microscopy and “destructive tomography.” The activity showed the students a series of sequential cross sections of food. The images were then reconstructed to create a 3-D rendering that could be interactively explored.

The team selected red cabbage and Swiss cheese because their cross-sections resemble objects that they have previously encountered in their research.

The team traveled to Madison Park Middle School in Phoenix to implement the activity with three groups of 30 seventh-graders. The students were introduced to tools that scientists use in a microscopy lab and shown how the tools are used.

The instructors made sure that demonstrations in the activity were designed to emphasize student engagement and exploration through questioning rather than merely repetition of facts presented during the lesson.

Rykaczewski grew up in a household that helped guide him into a STEM career.

“My dad makes isotopes and elements for a living and was on the team that made and got to name the chemical element Tennessine, so physics was ingrained into my family,” Rykaczewski said. “I also did a lot of black-and-white photography in high school, so working with an electron microscope in college was a fun way to combine my interests in photography and science.” 

He said he knows that his upbringing was not typical, but that it is important to get all young students interested in science, technology, engineering and mathematics at an early age.

“In the U.S. we have a shortage of homegrown STEM workers,” Rykaczewski said. “The hope is that, by showing students something neat and engaging that they can participate in, it will encourage them to consider such educational areas in high school and college.”

Howell added that it is especially important for underrepresented groups to be engaged.

“It is definitely important to get to the kids early, especially girls, because by their middle school years they have already accumulated a variety of stereotypes and societal expectations that discourage them from pursuing STEM careers,” she said.

Howell noted that the activity was a good experience for the female students at Madison Park Middle School in particular.

“One of the really powerful things resulting from this activity is that not only are girls encouraged to participate and shown that science can be interesting, but that they see another woman presenting science to them,” Howell said. “Lack of representative role models in STEM is often cited as a core reason that women and minorities do not feel compelled to pursue STEM fields.”

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