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## Math

American Symbols & HolidaysColumbus Day Whole Numbers Kindergarten Math Number Order Kindergarten Math Patterns First Grade Math Colors Kindergarten Math Subtraction Kindergarten Math Shapes Kindergarten Math ### TX.STAAR.8. STAAR Grade 8 Mathematics Assessment

#### Reporting Category 1: Numbers, Operations, and Quantitative Reasoning - The student will demonstrate an understanding of numbers, operations, and quantitative reasoning.

##### (8.1) Number, operation, and quantitative reasoning. The student understands that different forms of numbers are appropriate for different situations. The student is expected to:

###### 8.1 (A) Compare and order rational numbers in various forms including integers, percents, and positive and negative fractions and decimals. Readiness Standard (STAAR)

###### 8.1 (C) Approximate (mentally and with calculators) the value of irrational numbers as they arise from problem situations (such as p, O2). Supporting Standard (STAAR)

###### 8.1 (D) Express numbers in scientific notation, including negative exponents, in appropriate problem situations. Supporting Standard (STAAR)

##### (8.2) Number, operation, and quantitative reasoning. The student selects and uses appropriate operations to solve problems and justify solutions. The student is expected to:

###### 8.2 (B) Use appropriate operations to solve problems involving rational numbers in problem situations. Readiness Standard (STAAR)

###### 8.2 (D) Use multiplication by a given constant factor (including unit rate) to represent and solve problems involving proportional relationships including conversions between measurement systems. Supporting Standard (STAAR)

#### Reporting Category 2: Patterns, Relationships, and Algebraic Reasoning - The student will demonstrate an understanding of patterns, relationships, and algebraic reasoning.

##### (8.3) Patterns, relationships, and algebraic thinking. The student identifies proportional or non-proportional linear relationships in problem situations and solves problems. The student is expected to:

###### 8.3 (A) Compare and contrast proportional and non-proportional linear relationships. Supporting Standard (STAAR)

###### 8.3 (B) Estimate and find solutions to application problems involving percents and other proportional relationships such as similarity and rates. Readiness Standard (STAAR)

##### (8.5) Patterns, relationships, and algebraic thinking. The student uses graphs, tables, and algebraic representations to make predictions and solve problems. The student is expected to:

###### 8.5 (A) Predict, find, and justify solutions to application problems using appropriate tables, graphs, and algebraic equations. Readiness Standard (STAAR)

###### 8.5 (B) Find and evaluate an algebraic expression to determine any term in an arithmetic sequence (with a constant rate of change). Supporting Standard (STAAR)

#### Reporting Category 3: Geometry and Spatial Reasoning - The student will demonstrate an understanding of geometry and spatial reasoning.

##### (8.6) Geometry and spatial reasoning. The student uses transformational geometry to develop spatial sense. The student is expected to:

###### 8.6 (A) Generate similar figures using dilations including enlargements and reductions. Readiness Standard (STAAR)

##### (8.7) Geometry and spatial reasoning. The student uses geometry to model and describe the physical world. The student is expected to:

###### 8.7 (D) Locate and name points on a coordinate plane using ordered pairs of rational numbers. Supporting Standard (STAAR)

#### Reporting Category 4: Measurement - The student will demonstrate an understanding of the concepts and uses of measurement.

##### (8.10) Measurement. The student describes how changes in dimensions affect linear, area, and volume measures. The student is expected to:

###### 8.10 (A) Describe the resulting effects on perimeter and area when dimensions of a shape are changed proportionally. Supporting Standard (STAAR)

##### (8.8) Measurement. The student uses procedures to determine measures of three-dimensional figures. The student is expected to:

###### 8.8 (A) Find lateral and total surface area of prisms, pyramids, and cylinders using concrete models and nets (two-dimensional models). Supporting Standard (STAAR)

##### (8.9) Measurement. The student uses indirect measurement to solve problems. The student is expected to:

###### 8.9 (A) Use the Pythagorean Theorem to solve real-life problems. Readiness Standard (STAAR)

###### 8.9 (B) Use proportional relationships in similar two-dimensional figures or similar three-dimensional figures to find missing measurements. Readiness Standard (STAAR)

#### Reporting Category 5: Probability and Statistics - The student will demonstrate an understanding of probability and statistics.

##### (8.11) Probability and statistics. The student applies concepts of theoretical and experimental probability to make predictions. The student is expected to:

###### 8.11 (A) Find the probabilities of dependent and independent events. Readiness Standard (STAAR)

##### (8.12) Probability and statistics. The student uses statistical procedures to describe data. The student is expected to:

###### 8.12 (B) Draw conclusions and make predictions by analyzing trends in scatterplots. Supporting Standard (STAAR)

###### 8.12 (C) Select and use an appropriate representation for presenting and displaying relationships among collected data, including line plots, line graphs, stem and leaf plots, circle graphs, bar graphs, box and whisker plots, histograms, and Venn diagrams, with and without the use of technology. Supporting Standard (STAAR)

##### (8.13) Probability and statistics. The student evaluates predictions and conclusions based on statistical data. The student is expected to:

###### 8.13 (A) Evaluate methods of sampling to determine validity of an inference made from a set of data. Supporting Standard (STAAR)

###### 8.13 (B) Recognize misuses of graphical or numerical information and evaluate predictions and conclusions based on data analysis. Readiness Standard (STAAR)

#### Underlying Processes and Mathematical Tools: These skills will not be listed under a separate recording category. Instead, they will be incorporated into at least 75% of the test questions in reporting categories 1-5 and will be identified along with content standards.

##### (8.14) Underlying processes and mathematical tools. The student applies Grade 8 mathematics to solve problems connected to everyday experiences, investigations in other disciplines, and activities in and outside of school. The student is expected to:

###### 8.14 (A) Identify and apply mathematics to everyday experiences, to activities in and outside of school, with other disciplines, and with other mathematical topics. (STAAR)

###### 8.14 (B) Use a problem-solving model that incorporates understanding the problem, making a plan, carrying out the plan, and evaluating the solution for reasonableness. (STAAR)

###### 8.14 (C) Select or develop an appropriate problem-solving strategy from a variety of different types, including drawing a picture, looking for a pattern, systematic guessing and checking, acting it out, making a table, working a simpler problem, or working backwards to solve a problem. (STAAR)

##### (8.15) Underlying processes and mathematical tools. The student communicates about Grade 8 mathematics through informal and mathematical language, representations, and models. The student is expected to:

###### 8.15 (A) Communicate mathematical ideas using language, efficient tools, appropriate units, and graphical, numerical, physical, or algebraic mathematical models. (STAAR)

##### (8.16) Underlying processes and mathematical tools. The student uses logical reasoning to make conjectures and verify conclusions. The student is expected to:

###### 8.16 (A) Make conjectures from patterns or sets of examples and nonexamples. (STAAR)

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