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Louisiana Math Standards - 9th Grade
MathScore aligns to the Louisiana Math Standards for 9th Grade. The standards appear below along with the MathScore topics that match. If you click on a topic name, you will see sample problems at varying degrees of difficulty that MathScore generated. When students use our program, the difficulty of the problems will automatically adapt based on individual performance, resulting in not only true differentiated instruction, but a challenging game-like experience.
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View the Louisiana Math Standards at other levels.
Number and Number Relations
1. Identify and describe differences among natural numbers, whole numbers, integers, rational numbers, and irrational numbers2. Evaluate and write numerical expressions involving integer exponents (Exponent Basics , Exponents Of Fractional Bases , Negative Exponents Of Fractional Bases , Multiplying and Dividing Exponent Expressions , Exponent Rules For Fractions )
3. Apply scientific notation to perform computations, solve problems, and write representations of numbers (Scientific Notation 2 , Scientific Notation )
4. Distinguish between an exact and an approximate answer, and recognize errors introduced by the use of approximate numbers with technology
5. Demonstrate computational fluency with all rational numbers (e.g., estimation, mental math, technology, paper/pencil)
6. Simplify and perform basic operations on numerical expressions involving radicals (Simplifying Algebraic Expressions 2 , Simplifying Radical Expressions , Adding and Subtracting Radical Expressions , Multiplying and Dividing Radical Expressions )
7. Use proportional reasoning to model and solve real-life problems involving direct and inverse variation (Proportions 2 )
Algebra
8. Use order of operations to simplify or rewrite variable expressions (Order Of Operations , Simplifying Algebraic Expressions )9. Model real-life situations using linear expressions, equations, and inequalities (Algebraic Sentences 2 , Algebraic Sentences )
10. Identify independent and dependent variables in real-life relationships (Independent and Dependent Variables )
11. Use equivalent forms of equations and inequalities to solve real-life problems
12. Evaluate polynomial expressions for given values of the variable (Variable Substitution 2 )
13. Translate between the characteristics defining a line (i.e., slope, intercepts, points) and both its equation and graph (Applied Linear Equations 1 , Applied Linear Equations 2 )
14. Graph and interpret linear inequalities in one or two variables and systems of linear inequalities (Absolute Value 1 , Absolute Value 2 )
15. Translate among tabular, graphical, and algebraic representations of functions and real-life situations (Determining Slope , Graphs to Linear Equations , Graphs to Linear Equations 2 , Graphs to Linear Inequalities , Nonlinear Functions )
16. Interpret and solve systems of linear equations using graphing, substitution, elimination, with and without technology, and matrices using technology (System of Equations Substitution , System of Equations Addition , Age Problems )
Measurement
17. Distinguish between precision and accuracy18. Demonstrate and explain how the scale of a measuring instrument determines the precision of that instrument
19. Use significant digits in computational problems
20. Demonstrate and explain how relative measurement error is compounded when determining absolute error
21. Determine appropriate units and scales to use when solving measurement problems
22. Solve problems using indirect measurement (Proportions 2 )
Geometry
23. Use coordinate methods to solve and interpret problems (e.g., slope as rate of change, intercept as initial value, intersection as common solution, midpoint as equidistant) (Graphs to Linear Equations , Graphs to Linear Equations 2 )24. Graph a line when the slope and a point or when two points are known (Applied Linear Equations 1 )
25. Explain slope as a representation of "rate of change" (Determining Slope )
26. Perform translations and line reflections on the coordinate plane (Translations and Reflections )
Data Analysis, Probability, and Discrete Math
27. Determine the most appropriate measure of central tendency for a set of data based on its distribution28. Identify trends in data and support conclusions by using distribution characteristics such as patterns, clusters, and outliers
29. Create a scatter plot from a set of data and determine if the relationship is linear or nonlinear
30. Use simulations to estimate probabilities
31. Define probability in terms of sample spaces, outcomes, and events
32. Compute probabilities using geometric models and basic counting techniques such as combinations and permutations (Probability , Probability 2 )
33. Explain the relationship between the probability of an event occurring, and the odds of an event occurring and compute one given the other (Probability , Probability 2 )
34. Follow and interpret processes expressed in flow charts
Patterns, Relations, and Functions
35. Determine if a relation is a function and use appropriate function notation36. Identify the domain and range of functions (Domain and Range )
37. Analyze real-life relationships that can be modeled by linear functions
38. Identify and describe the characteristics of families of linear functions, with and without technology
39. Compare and contrast linear functions algebraically in terms of their rates of change and intercepts
40. Explain how the graph of a linear function changes as the coefficients or constants are changed in the function's symbolic representation
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