Research Papers/Topics in Science And Technology Education

Effect Of Some Physical And Chemical Treatments Of Millet Straw On Nutritive Value

ABSTRACT Limited use of cereal straws in livestock feeding is due to their low voluntary intake, low protein contents and low digestibility. Nutritional value of these roughages can be improved through chemical, physical or biological methods. Efficacy of treating straw with urea for improving its nutritive value is considered equivalent to anhydrous or aqueous ammonia. However, the adoption rate of urea treatment by farmers is low, maybe due to relatively tedious technology and highe...

Slt 371 Dna Fingerprinting And Forensic Analysis Laboratory Manual.

The electrophoretic resolution of DNA is carried out on a gel matrix of agarose or polyacrylamide. Agarose is used for horizontal electrophoretic procedure while polyacrylamide gel is used in vertical procedures. Agarose gels are used and cast by boiling agarose in a suitable dilute buffer, pouring into a mould and then allow it to solidify to form a matrix. The porosity of the formed matrix decreases with an increase in agarose concentration. When the DNA samples are loaded in an appli...

Enhancing Senior Secondary School Students Cognitive Achievement In Selected Biology Concepts Using Mercedes Model With Embedded Assessment Strategy

ABSTRACT The ineffectiveness of the strategies traditionally employed by science teachers has been attested to by several researchers. Thus research in science education has continued to seek for more effective ways of teaching science in general and biology in particular in order to ensure meaningful learning. Therefore, this study examined Senior secondary school students cognitive achievement in selected biology concepts using Mercedes model with embedded assessment strategies. Th...

Effects Of Explanations And Integration Of Ideas Pedagogies On Secondary School Chemistry Students' Acqusition Of Basic Science Process Skills In Nigeria

Abstract The thrust of this study was to determine the effects of explanations and integration of ideas on secondary school chemistry students' acquisition of observing and inferring skills in Lagos State of Nigeria. The extent to which gender could influence observing and inferring skills acquisition in chemistry was also ascertained. A null hypothesis was tested. The study adopted a quasi- experimental research design where intact classes were subjected to two treatment groups (explan...

Effect Of Knowledge Of Mathematics On Achievement Of Students In Physics

Abstract The study investigated the effect of the knowledge of Mathematics on Achievement of Physics students in secondary School in Lagos State. The study employed a pre-test, post-test control group quasi experimental research design, using school types and gender as moderator variables. A sample size of one hundred and ninety-four (J 94) Physics students were purposively selected from jive (5) senior secondary school (two Private, one Federal and two Public Senior Secondary School in...

Process Development Of The Synthesis Of 2, 3-Dichlorophenylpiperazine

AbstractThe new pathway for the synthesis of 2, 3-dichlorophenylpiperazine from cheap raw material, 2, 3-dichloroaniline is presented. 

Evaluation of The Integrated Science And Introductory Technology Programmes in Secondary Schools Benue State

ABSTRACT This study evaluated the Integrated Science and Introductory Technology curricula contents as well as their implementation in secondary schools in Benue State. Twelve research questions were answered and six hypotheses tested in this study. The study employed a survey design and six instruments were used to collect data from 50 secondary schools selected from 246 schools in the State using the Probability Proportionate to Size (PPS) sampling technique, 10 experts each in the f...

THE MANAGEMENT OF THE OPERATIONS OF SMALL-SCALE MINING INDUSTRIES IN THE OBUASI MUNICIPALITY.

ABSTRACT   Small-scale mining has become an activity that provides livelihoods to growing numbers of rural people in Ghana. This has attracted most of the youth and other groups of people into the business. This study sought to explore the management of operations of small-scale mining industries in the Obuasi Municipality.  The study sought the views of small-scale miners from the communities under study (Ahansoyewodea, Pomposo, Akrokerri, Kwabrafoso, Asonkori and&nb...

Relationships among senior school students’ self-efficacy, metacognition and their achievement in chemistry

AbstractLearners play very significant roles in the teaching–learning process. Irrespective of how teachers teach, learners often have their own ways of learning. Three hundred senior secondary school II students selected from 10 senior secondary schools in Ilorin, Nigeria participated in the study. Simple random sampling technique was used to select 30 students from each of the 10 purposively sampled senior secondary schools. Data were collected using three instruments, namely, Chemistr...

The Relationship Between Science Process Skills and Student Attitude Toward Physics in Senior Secondary School in Aliero Metropolis

ABSTRACTThis study investigated the relationship between science process skills and student attitude toward physicsin senior secondary school in Aliero metropolis. The study adopted a descriptive survey design and datawere largely descriptive by nature. Two set of questionnaires namely; Science Process Skills Test (SPST)and Attitudes toward Physics Questionnaire (ATPQ) was used for Data collection constructed by theresearcher. These were administered to a sample of 203 students selected from ...

The RepRap 3-D Printer Revolution in STEM Education

STEM is an acronym for science, technology, engineering and mathematics fields of study meant to improve U.S. competitiveness by guiding curriculum and influencing education policy. STEM education begins with K-12 educators, who are struggling with how to implement the Next Generation Science Standards (NGSS) that now place explicit emphasis on the relationship of engineering to science. The NGSS guidelines suggest that science curriculum should have activities with an iterative process invol...

Open-source 3-D printing Technologies for education: Bringing Additive Manufacturing to the Classroom

Objective 3-D printing technologies have the potential to improve both Science, Technology, Engineering, and Mathematics (STEM) education and Career and Technical Education (CTE), as well as integrating these two educational emphases and providing opportunities for cross-curriculum engagement. The objective of this study is to investigate the potential of open-source (OS) technologies in an educational setting, given the combination of economic constraints affecting all educational envir...

A Virtual Educational Exchange: A North-South Virtually-Shared Class on Sustainable Development

Increasingly international competence is considered and important skill to be acquired from an undergraduate education. Because international exchange presents a challenge to many students, there is a need to develop and implement alternative means for incorporating international and cross-cultural experiences into the undergraduate classroom. We report on the implementation of a semester-long, virtually-shared course offering between a U.S. and a Bolivian university. Since STEM (science, tec...

Free and Open Source 3-D Model Customizer for Websites to Democratize Design with OpenSCAD

3-D printing has entered the consumer market because of recent radical price declines. Consumers can save substantial money by offsetting purchases with DIY pre-designed 3-D printed products. However, even more value can be obtained with distributed manufacturing using mass customization. Unfortunately, the average consumer is not technically sophisticated enough to easily design their own products. One solution to this is the use of an overlay on OpenSCAD parametric code, although current so...

Open Source 3-D Printers: An Appropriate Technology for Building Low Cost Optics Labs for the Developing Communities

The recent introduction of RepRap (self-replicating rapid prototyper) 3-D printers and the resultant open source technological improvements have resulted in affordable 3-D printing, enabling low-cost distributed manufacturing for individuals. This development and others such as the rise of open source-appropriate technology (OSAT) and solar powered 3-D printing are moving 3-D printing from an industry based technology to one that could be used in the developing world for sustainable developme...


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