Periodic table(HT File)
Periodic table(HT File)

Scientists introduce new twist to learning periodic table

An innovative way to learn about the elements of the periodic table has been introduced through a study led by researchers of American Chemical Society (ACS).
ANI
PUBLISHED ON JAN 16, 2021 05:21 PM IST

An innovative way to learn about the elements of the periodic table has been introduced through a study led by researchers of American Chemical Society (ACS).

The first lesson in an introductory chemistry course typically deals with how to interpret the periodic table of elements, but its complexity can be overwhelming to students with little or no previous exposure.

Researchers reporting in ACS' Journal of Chemical Education introduce an innovative way to make learning about the elements much more approachable by using 'pseudo' periodic tables filled with superheroes, foods and apps.

One of the fundamental topics taught in first-year undergraduate chemistry courses is the organization and layout of the periodic table of elements. However, many university students consider it a daunting and difficult subject to master, prompting professors to seek new ways to engage their students and make its concepts more accessible.

Previous educational studies presented the table in different formats, such as crossword puzzles and cartograms, to address multiple types of learning styles. Gregory Watson and colleagues reasoned that introducing the periodic table with familiar items could also help.

And rather than teaching the full details right away, the researchers wanted to focus on some of its key characteristics first, using a contemporary, engaging and multi-level strategy.

The team presented first-year chemistry students with a series of made-up, or pseudo, periodic tables with objects that they had likely encountered before, including fruits and nuts, superheroes, iPad apps and meats.

The pseudo periodic versions replaced elements with single items to demonstrate one or more concepts needed to understand the trends and layout of the real chemical one. For example, a superhero table featured characters, such as Superman, Wonder Woman and the Green Lantern, prompting in-class discussions on how to group the icons by ability, strength, gender and other properties -- just as the elements are arranged in the real periodic table based on their similarities.

Over 75 percent of students taught with this strategy identified it as somewhat, very or extremely useful. An increase in correct answers relating to the subject on midterm exams suggested that these periodic tables improved students' comprehension.The researchers say that familiar items reduce stress and help students successfully build their base of chemistry knowledge.

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