问题 问答题 论述题

教师应如何指导儿童的结构游戏?

答案

参考答案:

教师在指导儿童结构游戏时的注意事项:(1)逐步投放多样化的、可塑性强的结构游戏材料,包括一些废旧材料的应用,营造富有吸引力的游戏氛围。(2)引导儿童逐步掌握结构游戏的基本知识和技能。(3)处理好主导和主体的关系,教师在结构游戏中起到导航的作甩,教师要学会观察、诱导、鼓励、评议、示范等指导策略。另一方面,教师也要尊重儿童的主体地位,做到:①不强迫,让幼儿有真正的自主选择权。②鼓励儿童进行尝试,激励儿童不怕失败,在儿童集体中总是有一些儿童害怕尝试新活动或在活动区内不知如何是好。③不限制,充分发挥幼儿的创造力。(4)重视结构游戏的过程,而不仅仅是游戏的成品或结果。(5)培养儿童正确对待游戏材料,教给儿童收放材料的方法,养成良好的整理习惯。

填空题
单项选择题

The blue of the sea is caused by the scattering of sunlight by tiny particles suspended in the water. Blue light, being of short wavelength, is scattered more efficiently than light of longer wavelengths. Although waters of the open ocean are commonly some shade of blue, green water is commonly seen near coasts, especially in tropical or subtropical regions. This is caused by yellow pigments being mixed with blue water. Phytoplankton are one source of the yellow pigment. Other microscopic plants may color the water brown or brownish-red. Near the shore, silt or sediment in suspension can give water a brownish hue. Outflow of large rivers can often be observed many miles offshore by the coloration of suspended soil particles.Marine phytoplankton (Greek for "plant wanderers") are microscopic single-celled plants that include diatoms, dinoflagellates, coccolithophorids, green algae, and blue-green algae, among others. The growth of these organisms, which photosynthesize light, depends on a delicate balance of nutrient enrichment via vertical mixing, which is often limited by the availability of nitrogen and light. Diatoms are one-celled plants with patterned glass coverings. Each glass, or silicon dioxide box, is ornamented with species-specific designs, pits, and perforations making them popular with microscopists and, more recently, electron scanning microscopists.

Green water near coastlines is almost always caused by________.

A.sand color

B.red pigments in coastal waters

C.blue pigment

D.reflected light and yellow pigment from plant life