求翻译：例如，在学习文具的词汇时，有的教师设计了利用 pen, pencil, pencil-case, eraser, ruler, crayon等实物或图片进行猜谜游戏，让学生猜书包中的物品；在学习“ At the zoo”话题时，教师设计了带学生参观动物园的情景，让学生口头描述他们所熟悉的动物，如 elephant, cat, dog, monkey, bear, tiger的特征，并能说 I like monkey。这些情境的创设都有利于学生在有限的时间内达到预期的学习目标，教学活动目标明确。是什么意思？

For example, when learning the vocabulary of stationery, and some teachers to the use of pen, pencil, pencil-case, eraser, ruler, crayon and other physical or picture puzzle game for students to guess the items in the bag; learning "At the zoo "topic, the teacher designed a scene with the students t

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For example, when studies the stationery the glossary, some teachers design have used pen, pencil, pencil-case, eraser, ruler, material objects or the picture and so on crayon carry on guess a riddle the game, lets the student guess in the book bag the goods; When studies “At the zoo” the topic, the

For example, in learning stationery of vocabulary Shi, some teachers design has using pen, pencil, pencil-case, Eraser, ruler, crayon, real or pictures for guessing game, let students guess bag in the of articles; in learning "At the Zoo" topic Shi, teachers design has with students visit Zoo of sce

For example, in learning stationery of vocabulary Shi, some teachers design has using pen, pencil, pencil-case, Eraser, ruler, crayon, real or pictures for guessing game, let students guess bag in the of articles; in learning "At the Zoo" topic Shi, teachers design has with students visit Zoo of sce