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基于体验式教学的小学数学“量感”培养策略探究
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作者 周洁 《数学学习与研究》 2024年第15期20-22,共3页
《义务教育数学课程标准(2022年版)》(以下简称《新课标》)指出,数学教学应培养学生的核心素养,同时将小学阶段的数学核心素养细分为11项,其中“量感”素养是小学阶段核心素养的一个主要表现.学生的“量感”素养水平对学生抽象能力的形... 《义务教育数学课程标准(2022年版)》(以下简称《新课标》)指出,数学教学应培养学生的核心素养,同时将小学阶段的数学核心素养细分为11项,其中“量感”素养是小学阶段核心素养的一个主要表现.学生的“量感”素养水平对学生抽象能力的形成有直接的影响.而体验式教学是现阶段教改实践中的一个常用的教学模式,应用体验式教学模式开展教学,能够促进学生亲身经历理解、推理、计算、领悟、验证的学习过程,从而潜移默化地培养学生的核心素养.基于此,文章概述了体验式教学的相关内容,提出在小学数学教学中教师可以将体验式教学模式作为培养学生“量感”素养的重要抓手,通过在教学全过程创设多样化的体验式教学活动,提升学生的“量感”素养. 展开更多
关键词 小学数学 新课标 体验式教学 “量感”素养
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Helicobacter pylori infection and micronutrient deficiencies 被引量:7
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作者 Javed Yakoob Wasim Jafri Shahab Abid 《World Journal of Gastroenterology》 SCIE CAS CSCD 2003年第10期2137-2139,共3页
It is known that deficiencies of micronutrients due to infections increase morbidity and mortality.This phenomenon depicts itself conspicuously in developing countries. Deficiencies of iron,vitamins A,E,C,B12,etc are ... It is known that deficiencies of micronutrients due to infections increase morbidity and mortality.This phenomenon depicts itself conspicuously in developing countries. Deficiencies of iron,vitamins A,E,C,B12,etc are widely prevalent among populations living in the third world countries.Helicobacter pylori(H pylori)infection has a high prevalence throughout the world.Deficiencies of several micronutrients due to H pylori infection may be concomitantly present and vary from subtle sub-clinical states to severe clinical disorders.These essential trace elements/ micronutrients are involved in host defense mechanisms, maintaining epithelial cell integrity,glycoprotein synthesis, transport mechanisms,myocardial contractility,brain development,cholesterol and glucose metabolism.In this paper H pylori infection in associaed with various micronutrients deficiencies is briefly reviewed. 展开更多
关键词 Helicobacter pylori AVITAMINOSIS Helicobacter Infections Humans MICRONUTRIENTS
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Obtaining Cheese with Milk Mixture and Inca Peanut (Plukenetia Volubilis) 被引量:1
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作者 Ysabel Ferandez Abner Obregon +2 位作者 Mari Medina Epifanio Martinez Euler Navarro 《Journal of Chemistry and Chemical Engineering》 2015年第8期533-537,共5页
The Inca peanut, a plant native to the Peruvian Amazon, has an important nutritional contribution to 53% oil and 33% protein [ 1, 2], high content of Omega 3 and 6, Vitamin E. Recent research suggests the nutritional ... The Inca peanut, a plant native to the Peruvian Amazon, has an important nutritional contribution to 53% oil and 33% protein [ 1, 2], high content of Omega 3 and 6, Vitamin E. Recent research suggests the nutritional and therapeutic significance of consumption for the control of free radicals [3], being an alternative food to reduce nutritional deficiencies of macro and micronutrients in the diet. The results show that the cheese made from a mixture of milk and Inca peanut (70:20 v/v) 0.15 M of Ca sulphate is of firm consistency, with a clotting time of 9 min and yields 14.56% at 80 ℃, is similar to fresh milk cheese sensory characteristics determined by the test of acceptability. Respect to nutrition cheeses present values of protein and fat (16.3% and, 25.05%, respectively). Sensory evaluation process cheese 70:30 v/v showed an acceptance of 67% relative to a commercial cheese. The texture profile of the finished product, applying a deformation of 30%, have hardness values for 1.88 N, elasticity 0.08, cohesiveness 0.86, adhesiveness 0.36, gumminess 1.62 and chewiness 0.13. 展开更多
关键词 Inca peanut Inca peanut milk Inca peanut cheese milk mixture
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