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8th Grade Math TEKS Week 18 Week of January 14th, 2013
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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