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8th Grade Math TEKS Week 18 Week of January 14th, 2013 M
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1
Number, operation, and quantitative reasoning. The student understands that different forms of numbers are appropriate for different situations. The student is expected to:

A
Compare and order rational numbers in various forms including integers, percents, and positive and negative fractions and decimals; RS

B
Select and use appropriate forms of rational numbers to solve real-life problems including those involving proportional relationships; SS

C
Approximate (mentally and with calculators) the value of irrational numbers as they arise from problem situations (such as 2); SS

D
Express numbers in scientific notation, including negative exponents, in appropriate problem situations. SS

E
Compare and order real numbers with a calculator. SS

2
Number, operation, and quantitative reasoning. The student selects and uses appropriate operations to solve problems and justify solutions. The student is expected to:

A
Select appropriate operations to solve problems involving rational numbers and justify the selections; SS

B
Use appropriate operations to solve problems involving rational numbers in problem situations; RS

C
Evaluate a solution for reasonableness; SS

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

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:

A
Compare and contrast proportional and non-proportional linear relationships; SS

B
Estimate and find solutions to application problems involving percents and other proportional relationships such as similarity and rates. RS

4
Patterns, relationships, and algebraic thinking. The student makes connections among various representations of numerical relationship. The student is expected to:

A
Generate a different representation given one representation of data such as a table, graph, equation, or verbal description. RS

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:

A
Predict, find, and justify solutions to application problems using appropriate tables, graphs, and algebraic equations; RS

B
Find and evaluate an algebraic expression to determine any term in a sequence (with a constant rate of change); SS

6
Geometry and spatial reasoning. The student uses transformational geometry to develop spatial sense. The student is expected to:

A
Generate similar shapes using dilations including enlargements and reductions; and RS √




B
Graph dilations, reflections, and translations on a coordinate plane. SS

7
Geometry and spatial reasoning. The student use geometry to model and describe the physical world. The student is expected to:

A
Draw three dimensional figures from different perspectives; SS


B
Use geometric concepts and properties to solve problems in fields such as art and architecture; SS √




C
Use pictures and models to demonstrate the Pythagorean Theorem; and SS

D
Locate and name points on a coordinate plane using ordered pairs of rational numbers. SS

8
Measurement. The student uses procedures to determine measures of three dimensional figures. The student is expected to:

A
Find lateral and total surface area of prisms, pyramids, and cylinders using [concrete] models and nets (two-dimensional models); SS...
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