Denna litteraturstudie belyser och diskuterar undersökande undervisning med utgångspunkt i varför det används eller inte. Studien lyfter undersökande undervisning inom matematik och No. Här framkommer vilka faktorer som påverkar den undervisande lärarens val kring användandet av undersökande undervisning. Faktorer som påverkar användandet är främst lärarens attityd men även andra aspekter som tids- och materialbrist. Litteraturstudien diskuterar även undersökande undervisningens för- och nackdelar och väger dessa emot varandra. Här är synen på undersökande undervisning avgörande. Det är inte materialet i sig som utvecklar elevernas förståelse utan lärarens förmåga att använda materialet på ett fungerande sätt. Litteraturstudien grundar sig på vetenskapliga artiklar som vi hämtat ur två databaser. Artiklarna är utvalda för att besvara våra frågeställningar.

Au début des années 2000, alors que le système d'éducation québécois subissait de grands changements avec l'implantation des nouveaux programmes par compétences, les enseignants durent faire preuve d'une grande adaptabilité. Malgré les diverses oppositions, les modifications des pratiques d'enseignement et d'évaluation furent indispensables. Nous nous questionnions donc à savoir, depuis la mise en œuvre de la réforme, quelles sont les pratiques évaluatives déclarées des enseignants de science et technologie au regard de la compétence 1? Plus précisément, nous voulions savoir si l'évaluation de l'investigation scientifique dans le cadre des laboratoires en salle de classe s'aligne réellement avec la démarche évaluative. Pour ce faire, dans une optique descriptive, nous avons mis sur pied un questionnaire autorapporté auquel ont répondu 49 enseignants de science 4e secondaire provenant de 15 régions administratives différentes. Les résultats ont permis de démontrer que les enseignants de science de notre échantillon appliquent en général les recommandations ministérielles, mais que la charge du programme et le manque de temps sont des facteurs déterminants à l'adhésion au programme par compétences. Tout d'abord, il a été déterminé que très peu d’enseignants utilisent la planification à rebours et que très peu d'évaluations permettent aux élèves de faire des choix, de formuler des conjectures, de faire des essais, de partir de leurs propres questions ou de concevoir leur propre protocole. Heureusement, la collecte de données a révélé que les enseignants utilisent davantage l'évaluation formative. De plus, la majorité des enseignants utilisent l'interprétation critériée en comparant les élèves à leurs critères personnels ou aux critères du programme. Les enseignants communiquent alors régulièrement les résultats des évaluations, de même que de la rétroaction, aux élèves et à leurs parents. Malgré tout, il semblerait que le contexte pandémique n'ait influencé que très peu les pratiques évaluatives des enseignants. Finalement, des suggestions à cet effet sont proposées.

n view of the volume of literature already written about the caste-system, it would seem that yet another entry should ha been unnecessary. Yet it was precisely because of this mighty flood of titles that the present investigation was undertaken. Not only were there many conflicting definitions of the term "caste" itself; there were, also, many conflicting opinions as to the antiquity of the caste-system. In many cases, the latter problem wa was functionally related to the former. A definition of caste had been formulated on the basis of contemporary social practice. Then, this definition was projected backwards into the dim reaches of historical antiquity by means of selectively picking over the Indo-Aryan literature to find passages which lent support to the contemporary definition. Prestol "Caste Through the Ages". Aside from the ethical considerations, or, rather, lack of them, involved in such a modus operandi, the results shed little light upon the social structure of ancient India. The Indo-Aryan literature contained many passages which, when taken out of conto the contemporary definition. Prestol "Caste Through the Ages". Aside from the ethical considerations, or, rather, lack of them, involved in such a modus operandi, the results shed little light upon the social structure of ancient India. The Indo-Aryan literature contained many passages which, when taken out of context, lent support to practically any proposition an investigator might have wished to have uphold. Therefore, the intent of this inquiry was to determine the structure of the Indo-Aryan society from its literature, without pre-conceived opinions as to the existence of any particular social institution

<p> This thesis examines the operations of the Canadian Egg Marketing Agency and its provincial boards and their effects on producers, consumers and the agricultural industry. The variables that were reviewed to achieve this objective were: producer and retail price levels, the stability of producer and retail prices, the price differences between the provinces, the amount of imports and exports, the role of supply and demand in determining price and the producers' share of the consumer dollar. Two techniques were used. One method was the before and after technique which compared two periods, 1961-71 and 1975-82, to identify what changes had occurred since the introduction of CEMA in 1973. The second method was a comparison to the United States which control led for market structure changes. </p> <p> The results of this study are as follows. Producers have benefited from CEMA's operations through greater price stability, a larger share of the consumer dollar and from a higher price level than in the United States. CEMA has affected consumers by stabilizing retail prices and equalizing prices across the country. However, CEMA's actions have redistributed income from consumers to producers. CEMA has had a positive effect on the agricultural industry by increasing exports while import levels have remained the same. </p> / Thesis / Candidate in Philosophy

<p>An investigation of the steady state response of a non-linear system provided with an impact vibration absorber is made. The term non-linear in the present case refers to a system in which the spring restoring force is bi-linear./p><p> The effect of two main parameters viz. clearance d o (i.e. the free path of travel of the mass particle) and mass ratio μ = m/M (i.e. mass ratio between the mass particle and the primary system) on amplitude of vibration of the system has been investigated experimentally over a range of frequency.</p> <p>A numerical analysis of the problem is made with the aid of a digital computer to supplement the experimental results.</p> <p> It has been found that with proper choice of parameters an impact vibration absorber is effective in reducing vibration level of a nonlinear system undergoing sinusoidal excitation.</p> / Thesis / Master of Engineering (MEngr)

<p> It had been proposed that α-hydroperoxydiazenes decompose by the radical chain abstraction of the hydroxy group. This suggested that these compounds could be used as hydroxyalkylating agents for unsaturated systems. </p> <p> Compounds 15 and 23 were prepared by the autoxidation of the corresponding hydrazone. α-Hydroperoxydiazenes 15 and 23 were used to hydroxyalkylate ethyl vinyl ether and 2-methoxypropene in yields of 62-65%. Mechanisms of the addition reaction are discussed. </p> <p> In an attempt to alkylate a hetero atom system, ·compound 15 was thermolyzed with compound 25. The alkylation product was not obtained. </p> <P> Compound 15 was converted to α-hydroxydiazene 34 by the action of Φ3P. α-Hydroxydiazine have been used synthetically in the hydroalkylation of alkenes. The rate constant of hydrogen abstraction was determined to be in the range of 1.5 x 10^5 M^-ls^-l to 1.5 x 10^7 M^-ls^-l by the use of a radical clock reaction. An upper limit on the rate of rearrangement of the 2-cyanopropyl radical was found to be 3.65 x 10^3 s^-1 . </p> A new compound (23) was prepared / Thesis / Master of Science (MSc)

<p> A number of complexes FeX2Ln (X = Cl, Br; L = formamide, N-methylformamide, N,N-dimethylformamide, acetamide, benzamide, isobutyramide, urea, N-methylurea, N,N'-dimethylurea, thioacetamide, thiourea, N-methylthiourea, N,N'-dimethylthiourea, benzothiazole, aniline) have been prepared and investigated by means of Mossbauer and infrared spectroscopy and magnetic measurements. It has been possible to distinguish firstly between 4-coordinate and 6-coordinate complexes and secondly between a number of different types of 6-coordinate complexes.</p> / Thesis / Master of Science (MSc)

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