Thursday, August 7, 2025
Science
No Result
View All Result
  • Login
  • HOME
  • SCIENCE NEWS
  • CONTACT US
  • HOME
  • SCIENCE NEWS
  • CONTACT US
No Result
View All Result
Scienmag
No Result
View All Result
Home Science News Biology

Small changes make a big difference in life cycle diagrams

April 17, 2024
in Biology
Reading Time: 3 mins read
0
How Small Changes Make a Big Difference in Life Cycle Diagrams
65
SHARES
593
VIEWS
Share on FacebookShare on Twitter
ADVERTISEMENT
ADVERTISEMENT

Life cycle diagrams are ubiquitous in science textbooks, and they may be due for some updates. A new study finds simple design changes in these diagrams can have a dramatic impact on the ability of undergraduate students to understand key biology concepts.

How Small Changes Make a Big Difference in Life Cycle Diagrams

Credit: Jennifer Landin, North Carolina State University

Life cycle diagrams are ubiquitous in science textbooks, and they may be due for some updates. A new study finds simple design changes in these diagrams can have a dramatic impact on the ability of undergraduate students to understand key biology concepts.

“We were shocked by the study results,” says Jennifer Landin, corresponding author of the study and an associate teaching professor of biological sciences at North Carolina State University. “Making two small adjustments had a profound impact on the ability of college students to accurately answer questions related to ecology and evolution.”

For the study, researchers enlisted 684 undergraduates. Each study participant was given one of three different life cycle diagrams and asked to answer six questions related to an organism’s evolution and the survival of its offspring.

One diagram was the “traditional” format, showing the life cycle as a circle with the organism producing a single offspring. A second diagram showed the life cycle as a circle, but gave the organism multiple offspring. The third diagram gave the organism multiple offspring, but presented the life cycle in a linear format, moving from left to right.

On questions about offspring survival, the researchers found that students who were given a diagram showing multiple offspring scored 28% to 30% higher than students who had the diagram showing only a single offspring. And students who received the linear diagram scored 19% to 30% higher than the other students on questions about evolution.

Overall, students who received the linear diagram with multiple offspring earned the highest average score – answering 54.5% of the questions correctly. Students who received the traditional diagram – a cyclical layout with a single offspring – had the lowest average score. They were only able to answer 26.1% of the questions correctly.

“There are a couple of examples that underscore how powerful the effect of design can be,” Landin says. “For example, a common misconception among undergraduates is that all offspring survive to adulthood. We found that 30% of study participants who received the traditional diagram with a single offspring answered with this misconception. But only 3% to 5% of participants who received diagrams showing multiple offspring thought all of the offspring survived. That’s a meaningful difference.

“Another example is the common misconception that offspring are identical to their parents, when we know that children actually have different traits from their parents,” Landin says.

When researchers gave study participants diagrams with a cyclical format, 68% to 78% of those study participants thought offspring would have identical traits to their parents. But of the study participants who received the linear diagram, only 38% thought offspring would have identical traits to their parents.

“This is an important concept for biology students, and the format of these diagrams appears to make a big difference in helping students grasp that concept,” Landin says.

“This study suggests textbook publishers can improve student understanding of key concepts by revisiting the design of these life cycle diagrams. Furthermore, our findings suggest there may be value in studying the design elements in other life science diagrams to see if we can make them more effective teaching tools.”

The study, “Redesign of a Life Cycle Figure Improves Student Conceptions of Ecology and Evolution,” is published open access in the journal Education Sciences. The paper was co-authored by Abigail Cozart, a former undergraduate at NC State.

This work was done with support from the Provost’s Professional Experience Program at NC State.



Journal

Education Sciences

DOI

10.3390/educsci14040403

Method of Research

Experimental study

Subject of Research

People

Article Title

Redesign of a Life Cycle Figure Improves Student Conceptions of Ecology and Evolution

Article Publication Date

12-Apr-2024

COI Statement

none

Share26Tweet16
Previous Post

Researchers crack mystery of swirling vortexes in egg cells

Next Post

Cell biology: Molecular code stimulates pioneer cells to build blood vessels in the body

Related Posts

blank
Biology

First Enterocytozoon bieneusi Found in Turkish Wrestling Camels

August 7, 2025
blank
Biology

Onion Peel Reduces Collagen, Epinephrine Thrombosis in Rats

August 7, 2025
blank
Biology

Geographic Differences in Varroa Destructor Microbiomes

August 7, 2025
blank
Biology

Cercarial Dermatitis: Norway’s Emerging Zoonotic Threat

August 7, 2025
blank
Biology

Rewrite Active ingredients, nutrition values and health-promoting effects of aboveground parts of rhubarb: a review as a headline for a science magazine post, using no more than 8 words

August 7, 2025
blank
Biology

Co-cultivating Pseudomonas and Bacillus for Enhanced Biocontrol

August 7, 2025
Next Post
Image of active pioneer cell (center of image). Green indicates endothelial cell nucleus, grey the outline of the blood vessels. (Photo: Zoological Institute, KIT)

Cell biology: Molecular code stimulates pioneer cells to build blood vessels in the body

  • Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study

    Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study

    27530 shares
    Share 11009 Tweet 6881
  • University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept

    942 shares
    Share 377 Tweet 236
  • Bee body mass, pathogens and local climate influence heat tolerance

    641 shares
    Share 256 Tweet 160
  • Researchers record first-ever images and data of a shark experiencing a boat strike

    506 shares
    Share 202 Tweet 127
  • Warm seawater speeding up melting of ‘Doomsday Glacier,’ scientists warn

    310 shares
    Share 124 Tweet 78
Science

Embark on a thrilling journey of discovery with Scienmag.com—your ultimate source for cutting-edge breakthroughs. Immerse yourself in a world where curiosity knows no limits and tomorrow’s possibilities become today’s reality!

RECENT NEWS

  • First Enterocytozoon bieneusi Found in Turkish Wrestling Camels
  • CMTM3 and SSTR2 Expression Differs in Colon Tumors
  • Pediatric Lung Transplants in China: 2019–2023 Trends
  • Onion Peel Reduces Collagen, Epinephrine Thrombosis in Rats

Categories

  • Agriculture
  • Anthropology
  • Archaeology
  • Athmospheric
  • Biology
  • Bussines
  • Cancer
  • Chemistry
  • Climate
  • Earth Science
  • Marine
  • Mathematics
  • Medicine
  • Pediatry
  • Policy
  • Psychology & Psychiatry
  • Science Education
  • Social Science
  • Space
  • Technology and Engineering

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 4,859 other subscribers

© 2025 Scienmag - Science Magazine

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • HOME
  • SCIENCE NEWS
  • CONTACT US

© 2025 Scienmag - Science Magazine

Discover more from Science

Subscribe now to keep reading and get access to the full archive.

Continue reading