# Access Point #: MAFS.912.S-ID.1.AP.2aArchived Access Point

Describe a distribution using center and spread
Clarifications:

#### Essential Understandings

Concrete:

• Given a data display, identify outliers in the data set.
• Identify the highest and lowest value in a data set given a number line and matching symbols (concept of range).
• Identify the concept of median using concrete representations of data (create a bar graph with an odd number of bars using snap cubes; arrange from shortest to tallest; students place fingers on two outside towers, knock towers over and move inward until they reach the one middle tower left standing).
• Find the mean using concrete materials.
Representation:
• Identify the mean and/or median and the spread of the data.
• Calculate the mean using a pre-slugged template of data points.
• Order the data set.
• Understand the following concepts and vocabulary: median, mode, mean, outliers, standard deviation, interquartile range, center, spread, and range.
General Information
Number: MAFS.912.S-ID.1.AP.2a
Category: Access Points
Cluster: Summarize, represent, and interpret data on a single count or measurement variable. (Algebra 1 - Additional Cluster) (Algebra 2 - Additional Cluster)

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

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