This research attempted to study how using an advance organizer model can influence meaningful learning of new concepts for ESL learners in collaborative classrooms. The objectives were 1) to study the effects of using the advance organizer model, and 2) to study the student achievement after using the advance organizer model to compare to the 80…

We investigated the impact of inquiry-based learning on the situational interest (SI) of senior high school students in a molecular biology class. In part I of our study we designed an inquiry-based learning class as an experimental workshop in an out-of-school student lab and compared it with the participants' regular biology class. The workshop…

This research aims to determine the effect of MAR's integration into 5E learning in teaching biology. Particularly, its impact on the academic success of the preservice teachers and their attitudes towards digital technology is studied. To this end, the convergent parallel mixed research method is used. The study was conducted with the 31…

Graduate student teaching assistants from underrepresented groups may provide salient role models and enhanced instruction to minority students in STEM fields. We explore minority student-TA interactions in an important course in the sciences and STEM -- introductory chemistry labs -- at a large public university. The uncommon assignment method of…

Graduate student teaching assistants from underrepresented groups may provide salient role models and enhanced instruction to minority students in STEM fields. We explore minority student-TA interactions in an important course in the sciences and STEM -- introductory chemistry labs -- at a large public university. The uncommon assignment method of…

The COVID-19 outbreak has created turbulence and uncertainty into multiple aspects of life in countries around the world. In China, the pandemic continues to pose a great challenge to the nature of traditional in-class education in schools. Chinese education has faced the difficult decision of whether to resume in-person teaching in an…

The UFR Lansad (Language centre teaching languages to specialists of other disciplines) was created in 2014 at the University of Lorraine. The process leading to its creation was led by a small number of teachers and researchers, from the pre-existing teams of the previous Lorraine universities (Molle et al. 2019). It is the result of didactic…

Imines are important in biological chemistry and as intermediates in organic synthesis. An experiment for introductory undergraduate organic chemistry is presented in which benzaldehyde was condensed with "p"-methoxyaniline in toluene to give 4-methoxy-"N"-(phenylmethylene)benzenamine. Water was removed by azeotropic…

A five-week, research-based experiment suitable for second-semester introductory organic laboratory students is described. Each student designs, prepares, and analyzes a combinatorial array of six aromatic oligoamides. Molecules are prepared on solid phase via a six-step synthetic sequence, and purities and identities are determined by analysis of…

The laboratory experiment challenges students to determine 6-propyl-2-thiouracil (PTU) based on Prussian blue complex formation. Prussian blue is formed by ferricyanide and Fe(II) ions which are generated in situ from Fe(III) ions reduced by PTU. The absorbance of this product was measured at a wavelength of 840 nm, after a reaction time of 30…

The nature of science describes what science is, how it works, and its interactions with society under the perspectives of philosophy, history, sociology, and psychology of science. Understanding it is an essential aspect of scientific literacy. Given the critical role that school textbooks hold, considering what is taught and how it is taught in…

The Center for Universal Education (CUE) at Brookings has been investigating efforts to scale and sustain evidence-based initiatives leading to large-scale improvements in children's learning. CUE has been implementing a series of collaborative action research initiatives called Real-time Scaling Labs (RTSL), in partnership with local institutions…

Research-based blended learning (RBBL) allows students to be part of an authentic scientific discovery process. In this study, students' perception and motivation of the RBBL coupled with Scrum methodology in a third-year polytechnic chemistry laboratory course were investigated. Results showed that the scaffolded approach, designed referencing…

The concept of wave-particle duality in quantum theory is difficult to grasp because it attributes particle-like properties to classical waves and wave-like properties to classical particles. There seems to be an inconsistency involved with the notion that particle-like or wave-like attributes depend on how you look at an entity. The concept comes…

We describe a 3-hour session that provides students with the opportunity to review basic lab concepts and important techniques using real life scenarios. We began with two separate student-engaged discussions to remind/reinforce some basic concepts in physiology and review calculations with respect to chemical compounds. This was followed by…