为教育而译:数学:测量与数据(未完待续)

英文原文链接:http://www.corestandards.org/Math/Content/MD/

译者:彩云小译+小纪同学+詹娜

 

Kindergarten

幼儿园大班 (5-6岁)

 

Describe and compare measurable attributes.

描述和比较可测量的属性。

 

CCSS.MATH.CONTENT.K.MD.A.1

Describe measurable attributes of objects, such as length or weight. Describe several measurable attributes of a single object.

描述物体的可测量属性,如长度或重量。描述一个物体的多个可测量属性。

 

CCSS.MATH.CONTENT.K.MD.A.2

Directly compare two objects with a measurable attribute in common, to see which object has "more of"/"less of" the attribute, and describe the difference. For example, directly compare the heights of two children and describe one child as taller/shorter.

直接比较两个具有共同可测量属性的物体,看看哪个物体具有“更多的”/“更少的”属性,并描述其差异。例如,直接比较两个孩子的身高,并将一个孩子描述为更高/更矮。

 

Classify objects and count the number of objects in each category.

将物体分类并计算每个类别中物体的数量。

 

CCSS.MATH.CONTENT.K.MD.B.3

Classify objects into given categories; count the numbers of objects in each category and sort the categories by count. 1

将物体分类到指定类别之中;计算每个类别中物体的数量,并按数量对类别进行排序。


Grade 1

一年级

 

Measure lengths indirectly and by iterating length units.

通过更换长度单位的方式间接地测量长度。

 

CCSS.MATH.CONTENT.1.MD.A.1

Order three objects by length; compare the lengths of two objects indirectly by using a third object.

将三个物体按长度排序;间接比较两个物体的长度时,引入第三个物体。

 

CCSS.MATH.CONTENT.1.MD.A.2

Express the length of an object as a whole number of length units, by laying multiple copies of a shorter object (the length unit) end to end; understand that the length measurement of an object is the number of same-size length units that span it with no gaps or overlaps. Limit to contexts where the object being measured is spanned by a whole number of length units with no gaps or overlaps.

使用整数的单位长度来描述某个物体的长度,方法是将一个较短物体(长度单位)的多个副本端对端地铺设起来;理解一个物体的长度测量是指跨越该物体且没有间隙或重叠的同样大小的长度单位的数目。限制在被测对象跨越的整个长度单位数量没有间隙或重叠的情况下。

 

Tell and write time.

识别并记录时间。

 

CCSS.MATH.CONTENT.1.MD.B.3

Tell and write time in hours and half-hours using analog and digital clocks.

使用模拟和数字时钟,以小时和半小时为单位识别和记录时间。

 

Represent and interpret data.

表征和解释数据。

 

CCSS.MATH.CONTENT.1.MD.C.4

Organize, represent, and interpret data with up to three categories; ask and answer questions about the total number of data points, how many in each category, and how many more or less are in one category than in another.

组织、表征和解释最多三个类别的数据;询问并回答关于数据点的总数、每个类别中有多少数据点以及一个类别中比另一个类别多多少或少多少数据点的问题。