K-2.DA.9 Standard Breakdown

In the Math standards, the Measurement & Data domain addresses how students organize information and represent the data using models.

In Kindergarten, the standard K.MD.B.3 asks students to classify objects into given categories; count the numbers of objects in each category and sort the categories by count.

In first grade, the standard 1.MD.C.4 calls for students to 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.

In second grade, the standard 2.MD.D.10 requires students to draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph.

In the NGSS standards, Practice 2: Developing and Using Models, students use models to represent a system, to aid in the development of questions and explanations, to generate data that can be used to make predictions, and to communicate ideas to others. Modeling in K–2 builds on prior experiences and progresses to include using and developing models (i.e., diagram, drawing, physical replica, diorama, dramatization, or storyboard) that represent concrete events or design solutions.

Furthermore, the cross-cutting concept, Patterns, asks students to notice similarities and differences leading to ideas for how phenomenon might be classified.

In standard, 2-PS1-1, students plan and conduct an investigation to describe and classify different kinds of materials by their observable properties. While in, 2-PS1-2, students analyze data obtained from testing different materials to determine which materials have the properties that are best suited for an intended purpose.