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Showing 16 to 30 of 35 results Save | Export
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Geelan, David; Mahaffy, Peter; Mukherjee, Michelle – Teaching Science, 2014
Scientific visualisations such as computer-based animations and simulations are increasingly a feature of high school Science instruction. Visualisations are adopted enthusiastically by teachers and embraced by students, and there is good evidence that they are popular and well received. There is limited evidence, however, of how effective they…
Descriptors: Visualization, Chemistry, Scientific Concepts, High Schools
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Lim, Kieran F. – Teaching Science, 2012
The common question of why the tetrahedral angle is 109.471 degrees can be answered using a tetrahedron-in-a-cube, along with some Year 10 level mathematics. The tetrahedron-in-a-cube can also be used to demonstrate the non-polarity of tetrahedral molecules, the relationship between different types of lattice structures, and to demonstrate that…
Descriptors: Logical Thinking, Geometric Concepts, Molecular Structure, Teaching Methods
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Awad, Maro; Azar, Stefanie; Vieiro, Bianca; van Rooy, Wilhelmina – Teaching Science, 2012
With one week to go, Year 12 chemistry made their final practical an event to be remembered. We decided to take that infamous Periodic Table to the next level, transforming it into an edible table! Armed with 114 biscuits, multiple tubs filled with coloured icing, plastic knives, and gloves and "Professional" piping bags, we converted the science…
Descriptors: Chemistry, Science Achievement, Science Activities, Science Projects
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Wrigley, Colin – Teaching Science, 2012
Proteins are a diverse class of biochemical macromolecules, including substances as (apparently) unrelated as silk and sinew, hair and horn, feathers and flagella, enzymes and epidermis, gelatine (jelly) and gluten and gore, spider web, meat and fish muscle. Yet they are unified by being polymers of amino acids. Discovery of the nature of proteins…
Descriptors: Chemistry, Laboratory Experiments, Secondary School Curriculum, Science Activities
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Short, Daniel – Teaching Science, 2012
Minecraft is a multiplayer sandbox video game based in a virtual world modeled on the real world. Players are able to build and craft everyday items using blocks. The cubic geometry of Minecraft lends itself to the teaching of various academic subjects. Minecraft also has a functioning ecology, with chemistry and physics aspects interwoven within…
Descriptors: Science Instruction, Educational Technology, Simulation, Scientific Concepts
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Downs, Nathan; Larsen, Kim; Parisi, Alfio; Schouten, Peter; Brennan, Chris – Teaching Science, 2012
A practical exercise for developing a simple cost-effective solar ultraviolet radiation dosimeter is presented for use by middle school science students. Specifically, this exercise investigates a series of experiments utilising the historical blue print reaction, combining ammonium iron citrate and potassium hexacyanoferrate to develop an…
Descriptors: Chemistry, Foreign Countries, Science Curriculum, Investigations
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Sandoval, Christopher – Teaching Science, 2012
This article presents a demonstration using methane bubble flame tower that offers a fun and relatively cheap way of demonstrating what happens when there is a density difference. Teachers can do this as a predict-observe-explain demonstration after the students have learned about density to extend their learning and get into some higher order…
Descriptors: Chemistry, Scientific Concepts, Concept Teaching, Teaching Methods
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Lim, Kieran F. – Teaching Science, 2012
Titrations are common laboratory exercises in high school and university chemistry courses, because they are easy, relatively inexpensive, and they illustrate a number of fundamental chemical principles. While students have little difficulty with calculations involving a single titration step, there is a significant leap in conceptual difficulty…
Descriptors: Chemistry, Textbooks, Science Instruction, Science Education
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Fogarty, Ian; Geelan, David; Mukherjee, Michelle – Teaching Science, 2012
Five Canadian high school Chemistry classes in one school, taught by three different teachers, studied the concepts of dynamic chemical equilibria and Le Chatelier's Principle. Some students received traditional teacher-led explanations of the concept first and used an interactive scientific visualisation second, while others worked with the…
Descriptors: Chemistry, Foreign Countries, Secondary School Science, High Schools
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Chandrasegaran, A. L.; Treagust, David F.; Mocerino, Mauro – Teaching Science, 2011
This study involved the evaluation of the efficacy of a planned instructional program to facilitate understanding of the macroscopic, submicroscopic and symbolic representational systems when describing and explaining chemical reactions by sixty-five Grade 9 students in a Singapore secondary school. A two-tier multiple-choice diagnostic instrument…
Descriptors: Diagnostic Tests, Chemistry, Foreign Countries, Grade 9
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Skamp, Keith – Teaching Science, 2011
The new Australian national science curriculum includes chemistry content at the primary level. Chemistry for young students is learning about changes in material stuff (matter) and, by implication, of what stuff is made. Pedagogy in this area needs to be guided by research if stepping stones to later learning of chemical ideas are to facilitate…
Descriptors: Learning Strategies, Chemistry, Science Curriculum, Elementary School Science
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Keeratichamroen, Wasana; Dechsri, Precharn; Panijpan, Bhinyo; Ruenwongsa, Pintip – Teaching Science, 2010
In any demonstration to students, producing light and sound usually ensures interest and can enhance understanding and retention of the concepts involved. A guided inquiry (Predict, Observe, Explain: POE) approach was used to involve the students actively in their learning about the explosive combustion of fine flour particles in air in the…
Descriptors: Safety, Chemistry, Science Instruction, Inquiry
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Downs, Nathan; Parisi, Alfio; Powell, Samantha; Turner, Joanna; Brennan, Chris – Teaching Science, 2010
A technique has previously been described for secondary school-aged children to make ultraviolet (UV) dosimeters from highlighter pen ink drawn onto strips of paper. This technique required digital comparison of exposed ink paper strips with unexposed ink paper strips to determine a simple calibration function relating the degree of ink fading to…
Descriptors: Academic Achievement, Secondary Schools, Elementary Schools, Comparative Analysis
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Lim, Kieran F.; Dereani, Marino – Teaching Science, 2010
Nuclear magnetic resonance (NMR) spectroscopy is an important tool in the structural analysis of both organic and inorganic molecules. Proton NMR spectra can yield information about the chemical or bonding environment surrounding various protons, the number of protons in those environments, and the number of neighbouring protons around each…
Descriptors: Chemistry, Misconceptions, Science Instruction, Spectroscopy
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Venville, Grady; Oliver, Mary; Longnecker, Nancy; Rennie, Leonie – Teaching Science, 2010
This research used a survey and interviews to find out which science subjects 174 Year 10 students wanted to study in Year 11 and why. The results showed that the major reasons students wanted to study a particular science subject were because they were interested in the subject matter and because they felt they would achieve well in that subject.…
Descriptors: School Policy, Science Education, Interviews, Surveys
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