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Direct linkKind, Per Morten – Journal of Research in Science Teaching, 2013
The article argues that science assessment should change from an item-driven to a construct-driven practice and pay more attention to disciplinary scientific reasoning. It investigates assessment scales developed from a novel theoretical rationale, describing scientific reasoning as three fundamental practices (hypothesizing, experimenting, and…
Descriptors: Persuasive Discourse, Evaluation, Hypothesis Testing, Experiments
Board, Keith – Tech Directions, 2011
An excellent common activity in technology and engineering classes involves dropping an egg from a significant height in a protective device designed and built by students. This article describes how the author uses the classic "egg drop" as an inspiration to have students modify a small crash test vehicle that speeds down a track and crashes into…
Descriptors: Student Attitudes, Learning Activities, Student Projects, Teaching Methods
Download full textCandal, Carmen – NCSSSMST Journal, 2012
The effectiveness of five different enzymes as treatments against Staphylococcus biofilm growth was measured in the presence of antibiotics and alone. Protease was the least effective enzyme in biofilm removal with all antibiotics, and pectinase was the most effective with dicloxacillin and clindamycin. Also, dicloxacillin was the most effective…
Descriptors: Experimental Groups, Comparative Analysis, Control Groups, Biochemistry
Bland, Ronald B. – ProQuest LLC, 2012
This study analyzed instructional achievement and intrinsic motivation among 21st century secondary students utilizing a video lecture incorporating both student reaction cutaway images and immediate content interaction within the lecture. Respondents (n = 155) were from multiple classes and grade levels at a suburban Texas high school. Four…
Descriptors: Video Technology, Lecture Method, Secondary Education, High School Students
Peer reviewedKahn, Bruce E. – Journal of Chemical Education, 2004
A laboratory activity that can be used at a number of levels from high school to college is discussed. This activity can be used to teach chemical concepts such as oxidation and reduction, stoichiometry, acids and bases, pH, nucleophilic reactions, conjugation, leaving groups, complexation, solubility, and reversibility.
Descriptors: Chemistry, Secondary Education, Scientific Concepts, Laboratory Experiments
McCoy, Leah P., Ed. – Online Submission, 2003
This document presents the proceedings of an annual educational research forum held at Wake Forest University (Winston-Salem, North Carolina) on December 10, 2003. A table of contents and 31 research studies of high school teaching are included. The following studies are included: (1) No, Seriously: Humor Use by High School Social Studies Teachers…
Descriptors: War, Secondary Education, Social Studies, Teaching Methods
