scholarly journals A Simple Microscale Setup for Investigating Yeast Fermentation in High School Biology Classrooms

2016 ◽  
Vol 78 (8) ◽  
pp. 669-675 ◽  
Author(s):  
Kam Ho (Kennedy) Chan

High school students often find the concept of respiration difficult. Yeast, a readily available resource, offers promising material for studying the topic. This article describes a low-cost, microscale setup for investigating yeast fermentation. The observations in the practical activity are visually appealing to learners. The article also illustrates how this setup can be used to promote student engagement with scientific ideas by prompting students to (1) predict what they will observe in the activity and (2) link what they actually observe in it to the underlying scientific ideas, in the context of studying the effects of different sugar substrates on yeast fermentation. The simple setup can be easily modified for various scientific investigations related to yeast fermentation and, hence, represents a promising teaching tool for teaching this difficult-to-learn topic in high school biology classrooms.

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 504e-504
Author(s):  
Erika Szendrak ◽  
Paul E. Read ◽  
Jon S. Miller

Modern aspects of many subjects (e.g., computer science and some aspects of medical science) are now taught in many high schools, but the plant sciences are often given short shrift. A collaboration was therefore established with a high school biology program in which pilot workshops could be developed to enable advanced students to gain insights into modern plant science techniques. A successful example is the workshop on plant biotechnology presented in this report. This workshop is simple and flexible, taking into account that most high school biology laboratories and classrooms are not set up for sophisticated plant science/biotechnology projects. It is suitable for from 10 to 30 students, depending upon space and facilities available. Students work in pairs or trios, and learn simple disinfestation and transfer techniques for micropropagation and potential subsequent transformation treatments. Students gain insights into: sterile technique and hygiene; plant hormones and their physiological effects; plant cell, tissue and organ culture; the influence of environmental factors on response of cells and tissues cultured in vitro; and an understanding of the phenomenon of organogenesis and resulting plant growth and development. This workshop has been tested on several classes of students and following analysis, several refinements were included in subsequent iterations. Results of the students' experiments have been positive and instructive, with student learning outcomes above expectations. Further details of the workshop techniques and approach will be presented.


2021 ◽  
pp. 104687812110326
Author(s):  
Adeel Arif ◽  
Amber Arif ◽  
Kimberly Anne Fasciglione ◽  
Farrukh Nadeem Jafri

Abstract: Background Locations concentrated with High School (HS) students tend to have lower out-of-hospital cardiac arrest (OHCA) survival rates. Mobile applications (apps) have the capability to augment cardiopulmonary resuscitation (CPR) skill retention as a low-cost, accessible training method. Methods An iterative process to develop an app to reinforce CPR skills emphasizing hand placement, compression rate, real-time feedback, and recurring tips is described. The app was tested on HS students to measure its impact on quality and comfort of CPR using Likert surveys and skills assessments before and after one month of usage. CPR Score and compression rate were measured using the Laerdal™ Little Anne Manikin QCPR software. Results Fourteen HS students participated in a prospective observational study. It was found that the use of the developed app was associated with improved CPR performance (80.43% v. 87.86%, p=0.01-0.02, 95% CI=2.20-12.66) after one month. Additionally, improvements were demonstrated in compression rate accuracy (21.43% v. 64.29%, p=0.041, 95% CI=0.132-0.725), increased comfort performing CPR (3.86 v. 4.79, p<0.001, 95% CI =0.99-1.00) and comfort performing CPR on strangers (2.71 v. 4.42, p<0.001, 95% CI=1.24-2.19). In addition, for every time the app was used, CPR performance increased by 0.5668% (p=0.0182). Conclusion Findings suggest that mobile apps may have promising implications as augmentative tools for CPR curriculums.


2019 ◽  
Vol 44 (2) ◽  
pp. 144-176 ◽  
Author(s):  
Edward Fletcher ◽  
Tony Xing Tan ◽  
Victor M. Hernandez-Gantes

The purpose of this study was to compare the student engagement of career academy students to those at a traditional comprehensive high school. We operationalized student engagement using a multi-dimensional construct comprised of behavioral, cognitive, and emotional measures. Based on data from 669 career academy students and 614 comprehensive school students, we found that academy students had significantly higher levels of cognitive and emotional engagement than those at comprehensive schools. However, we found no statistically significant differences in the levels of behavioral engagement of academy students compared to comprehensive school students. Based on our findings, participation in the academy model has the potential to increase high school students' levels of cognitive and emotional engagement, particularly those from underrepresented and ethnically and racially diverse backgrounds.


2017 ◽  
Vol 29 (6) ◽  
pp. 980-991 ◽  
Author(s):  
Takafumi Noguchi ◽  
Hidekazu Kajiwara ◽  
Kazunori Chida ◽  
Sakae Inamori ◽  
◽  
...  

A robot that consists of a compact disc (CD) and an embedded microcomputer has been developed as a robotics learning tool for elementary and junior high school students. The students can program the robot to draw a variety of shapes by placing a pen in the center hole of the CD. As the movement track of the robot can be recorded, the students can preserve their devised program execution results. In addition, intuitive instructions can be used to control the robot. This allows to input the program by operating several push-button switches. The program instructions can be viewed on the robot’s 8 LEDs-display interface. This robot is a unique teaching tool, which can be used to learn the mechanism of the robot composed of sensors, actuators, and a computer, without using a personal computer.


2009 ◽  
Vol 7 (2) ◽  
pp. 8
Author(s):  
W. A PINHEIRO ◽  
K. V. S FERNANDES ◽  
M DANSA-PETRETSKI ◽  
W. M POMPILHO

Author(s):  
Kitsiri Chochiang ◽  
Kullawat Chaowanawatee ◽  
Kittasil Silanon ◽  
Thitinan Kliangsuwan

2020 ◽  
Vol 82 (7) ◽  
pp. 463-469
Author(s):  
Sara Raven ◽  
Emel Cevik ◽  
Michael Model

Although research and new technologies have introduced different ways of observing microorganisms, including scanning and electron microscopy, these methods are expensive and require equipment that is typically not found in a middle school classroom. The transmission-through-dye technique (TTD; Gregg et al., 2010), a new optical microscopy method that can be used with current basic light microscopes, relies on the fairly simple mechanism of filtered light passing through a dyed medium to produce an image that reflects cell thickness. With this technique, living microorganisms look bright red against a dark background, and movement can be seen easily among dead microorganisms and debris that show up black. Since the technique is low-cost and easy to implement, it addresses the needs of practitioners and is appropriate for a wide array of school contexts. We describe a three-week, hands-on, inquiry-based unit on TTD microscopy for middle and high school students.


2020 ◽  
Vol 10 (2) ◽  
pp. 126-138
Author(s):  
Siti Auliaddina

Learning media have an important role in the teaching and learning process, because it makes the delivery of material in the learning process easier. One example of learning media is interactive multimedia based on scientific literacy. The main focus in the study of scientific literacy is the understanding of science which includes an understanding of nature through the mastery of basic science such as chemistry, biology and physics. So that interactive multimedia based on scientific literacy is very suitable in science learning. In this journal it was revealed about interactive learning media in the form of interactive videos of high school biology material based on the context of rice. In this journal the content of biology material from high schools is stated in the context of rice. The research methodology used is the waterfall method. Where after the authors analyze the content of High School Biology Material in accordance with the context of rice, then it is applied to the interactive multimedia created, and conduct interactive multimedia testing of high school students. After the usability test was conducted, the results were obtained that the interactive multimedia made could be well received and attracted the interest of most high school students who were correspondents.


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