Open ended tasks and barriers to learning : teachers\u27 perspectives

Examines barriers to learning mathematics when using an open-ended task teaching strategy. Features of an open-ended task; Benefits of an open-ended task; Problems concerning multiplicity of responses and contexts in an open-ended task.<br /

The Construction of Identity in Secondary Mathematics Education

Arts, Education & Law Group, School of Education and Professional StudiesNo Full Tex

Planning and teaching mathematics lessons as a dynamic, interactive process

We are researching actions that teachers can take to improve mathematics learning for all students, with particular attention to specific groups of students who might experience difficulty. After identifying possible barriers to learning, we offered teachers mathematics lessons structured in a particular way. Teachers&rsquo; use of the model outlined in this paper seemed productive and their resulting planning and teaching proved to be dynamic and interactive. This paper uses excerpts from a conversation between two teachers to illustrate specific aspects of the model.<br /

Doing Business Christianly

We are also called, in doing our work Christianly, to join God in His redemptive work–as Christ brings everything to its conclusion in perfect shalom. Posting about Christian life and work­­­­­­­­ from In All Things - an online hub committed to the claim that the life, death, and resurrection of Jesus Christ has implications for the entire world. http://inallthings.org/doing-business-christianly

Influence of trans fatty acids on linoleic acid metabolism in the rat

At the start of the work described in this thesis, most reviewers on trans fatty acids agreed that these isomeric fatty acids did not induce undesirable effects, provided sufficient linoleic acid was present in the diet (Beare-Rogers, 1983; Emken, 1983; Gottenbos, 1983; Gurr, 1983). However, trans fatty acids were reported to aggravate symptoms of essential fatty acid deficiency in experimental animals (poor growth, deteriorated skin, impairment of spermatogenesis) and cause alterations in tissue fatty acid composition and decrease prostaglandin synthesis (Aaes-J0rgensen and H0lmer, 1969; Hill et al, 1979; Kinsella et al, 1981). It was our aim to define the minimum requirement for linoleic acid necessary to prevent specific or adverse effects (like aggravation of linoleic acid deficiency and decrease in prostaglandin synthesis) of trans fatty acids from partially hydrogenated vegetable oils (mainly Cl8 trans fatty acids) . Moreover, we wanted to get a better insight into the effects of trans fatty acids on linoleic acid metabolism, because it was suggested that changes in metabolism of linoleic acid and polyunsaturated fatty acids derived thereof could be the underlying cause of the alleged adverse effects of trans fatty acids (Kinsella et al, 1981; Hill et al, 1982). In our feeding experiments we used a special, partially hydrogenated soybean oil. This oil contained a high amount of various monoenoic trans isomers, but also a relatively high amount of dienoic trans fatty acids: isomers of linoleic acid. The diets were composed in such a way as to contain 16 en% trans monoenes and maximally about 3.2 en% trans dienes (about 0.2 en% 9t,l2t-18:2 and 0.2 en% other 9,12-18:2 isomers and 3.1 en% non-9,12-18:2 isomers (cis and trans)), thus by far exceeding the trans content of human diets. The advantage of this approach over feeding isolated fatty acids is that both monoenoic and polyenoic trans fatty acids are present in the experimental diet and that the distribution of positional isomers is similar to that in the human diet. So, conclusions can be reached with regard to the nutritive value of trans fatty acidscontaining food products, consumed in realistic amount

Business to Academia: Taking Lean from Pella Corporation to Dordt College

Presentation from the Second Annual Siouxland Lean Consortium Conference held in Sioux City, Iowa, January 13, 2015

My Kids Made Me Do It: My Journey into Global Missions

I... saw a thread throughout the entirety of scripture of God‘s heart for the nations and for God’s glory to be made known in the lives of all people. Posting about ­­­­­­­­obeying God\u27s call to spread the gospel from In All Things - an online journal for critical reflection on faith, culture, art, and every ordinary-yet-graced square inch of God’s creation. https://inallthings.org/my-kids-made-me-do-it-my-journey-into-global-missions

Language implications for numeracy: a study of language use of disadvantaged students

Increasingly language is recognised as causing difficulties for students when they come to learn mathematics. Many different levels and aspects of language can be seen to create such difficulties for students. This paper looks at the implications of language on learning mathematics or developing a sense of numeracy