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 TITLE 19 EDUCATION PART 2 TEXAS EDUCATION AGENCY CHAPTER 111 TEXAS ESSENTIAL KNOWLEDGE AND SKILLS FOR MATHEMATICS SUBCHAPTER A ELEMENTARY RULE §111.3 Grade 1, Adopted 2012
 (G) apply properties of operations to add and subtract two or three numbers.   (6) Geometry and measurement. The student applies mathematical process standards to analyze attributes of two-dimensional shapes and three-dimensional solids to develop generalizations about their properties. The student is expected to:     (A) classify and sort regular and irregular two-dimensional shapes based on attributes using informal geometric language;     (B) distinguish between attributes that define a two-dimensional or three-dimensional figure and attributes that do not define the shape;     (C) create two-dimensional figures, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons;     (D) identify two-dimensional shapes, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons and describe their attributes using formal geometric language;     (E) identify three-dimensional solids, including spheres, cones, cylinders, rectangular prisms (including cubes), and triangular prisms, and describe their attributes using formal geometric language;     (F) compose two-dimensional shapes by joining two, three, or four figures to produce a target shape in more than one way if possible;     (G) partition two-dimensional figures into two and four fair shares or equal parts and describe the parts using words; and     (H) identify examples and non-examples of halves and fourths.   (7) Geometry and measurement. The student applies mathematical process standards to select and use units to describe length and time. The student is expected to:     (A) use measuring tools to measure the length of objects to reinforce the continuous nature of linear measurement;     (B) illustrate that the length of an object is the number of same-size units of length that, when laid end-to-end with no gaps or overlaps, reach from one end of the object to the other;     (C) measure the same object/distance with units of two different lengths and describe how and why the measurements differ;     (D) describe a length to the nearest whole unit using a number and a unit; and     (E) tell time to the hour and half hour using analog and digital clocks.   (8) Data analysis. The student applies mathematical process standards to organize data to make it useful for interpreting information and solving problems. The student is expected to:     (A) collect, sort, and organize data in up to three categories using models/representations such as tally marks or T-charts;     (B) use data to create picture and bar-type graphs; and     (C) draw conclusions and generate and answer questions using information from picture and bar-type graphs.   (9) Personal financial literacy. The student applies mathematical process standards to manage one's financial resources effectively for lifetime financial security. The student is expected to:     (A) define money earned as income;     (B) identify income as a means of obtaining goods and services, oftentimes making choices between wants and needs;     (C) distinguish between spending and saving; and     (D) consider charitable giving. Source Note: The provisions of this §111.3 adopted to be effective September 10, 2012, 37 TexReg 7109

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