Second Grade CA Math Standards continued...
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Measurement and Geometry 1.0 Students understand that measurement is accomplished by identifying a unit of measure, iterating (repeating) that unit, and comparing it to the item to be measured: 1.1 Measure the length of objects by iterating (repeating) a nonstandard or standard unit. 1.2 Use different units to measure the same object and predict whether the measure will be greater or smaller when a different unit is used. 1.3 Measure the length of an object to the nearest inch and/or centimeter. 1.4 Tell time to the nearest quarter hour and know relationships of time (e.g., minutes in an hour, days in a month, weeks in a year). 1.5 Determine the duration of intervals of time in hours (e.g., 11:00 a.m. to 4:00 p.m.).
2.0 Students identify and describe the attributes of common figures in the plane and of common objects in space: 2.1 Describe and classify plane and solid geometric shapes (e.g., circle, triangle, square, rectangle, sphere, pyramid, cube, rectangular prism) according to the number and shape of faces, edges, and vertices. 2.2 Put shapes together and take them apart to form other shapes (e.g., two congruent right triangles can be arranged to form a rectangle).
Statistics, Data, Analysis, and Probability 1.0 Students collect numerical data and record, organize, display, and interpret the data on bar graphs and other representations: Record numerical data in systematic ways, keeping track of what has been counted. Represent the same data set in more than one way (e.g., bar graphs and charts with tallies). Identify features of data sets (range and mode). Ask and answer simple questions related to data representations.
2.0 Students demonstrate an understanding of patterns and how patterns grow and describe them in general ways: 2.1 Recognize, describe, and extend patterns and determine a next term in linear patterns (e.g., 4, 8, 12, …; the number of ears on one horse, two horses, three horses, four horses). 2.2 Solve problems involving simple number patterns.
Mathematical Reasoning 1.0 Students make decisions about how to set up a problem: 1.1 Determine the approach, materials, and strategies to be used. 1.2 Use tools, such as manipulatives or sketches, to model problems.
2.0 Students solve problems and justify their reasoning: 2.1 Defend the reasoning used and justify the procedures selected. 2.2 Make precise calculations and check the validity of the results in the context of the problem.
3.0 Students note connections between one problem and another.

Weblinks to math and reading standards provided courtesy of Mrs. Rios of Mendoza Elementary 