IXL Skill Alignment
Algebra 1 alignment for Illustrative Mathematics
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Unit 1One-variable Statistics Getting to Know You
Distribution Shapes
How to Use Spreadsheets
Textbook section IXL skills
Lesson 1: Getting to Know You 1. Identify statistical questions 6YK
Lesson 2: Data Representations 1. Create histograms WZU
2. Box plots YE9
3. Create line plots N2E
Lesson 3: A Gallery of Data 1. Interpret histograms 2QR
2. Interpret line plots PXN
Textbook section IXL skills
Lesson 4: The Shape of Distributions
Lesson 5: Calculating Measures of Center andVariability
1. Mean, median, mode, and range MHB
2. Calculate quartiles and interquartile range 8H9
3. Mean absolute deviation A5C
Textbook section IXL skills
Lesson 6: Mystery Computations
Lesson 7: Spreadsheet Computations
Lesson 8: Spreadsheet Shortcuts
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Manipulating Data
Analyzing Data
Textbook section IXL skills
Lesson 9: Technological Graphing 1. Interpret stem-and-leaf plots EBJ
Lesson 10: The Effect of Extremes
Lesson 11: Comparing and Contrasting DataDistributions
Lesson 12: Standard Deviation
Lesson 13: More Standard Deviation
1. Standard deviation WA2
Lesson 14: Outliers 1. Identify an outlier 87L
2. Identify an outlier and describe the effect ofremoving it XGC
Lesson 15: Comparing Data Sets
Textbook section IXL skills
Lesson 16: Analyzing Data
Checkpoint opportunity 1. Checkpoint: Line plots, histograms, and boxplots UVL
2. Checkpoint: Compare data sets DJA
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Unit 2Linear Equations, Inequalities, and Systems Writing and Modeling with Equations
Manipulating Equations and Understanding Their Structure
Textbook section IXL skills
Lesson 1: Planning a Pizza Party 1. Write variable expressions D7K
2. Write variable expressions: word problems 8UK
Lesson 2: Writing Equations to ModelRelationships (Part 1)
Lesson 3: Writing Equations to ModelRelationships (Part 2)
1. Write variable equations YVW
2. Write linear functions: word problems 9RQ
Also consider• Write and solve equations that represent
diagrams GBC
• Write direct variation equations Y6M
Lesson 4: Equations and Their Solutions 1. Which x satisfies an equation? YTT
2. Does (x, y) satisfy the equation? SFJ
Also consider• Solve two-step linear equations QAK
• Solve one-step and two-step equations: wordproblems UFG
Lesson 5: Equations and Their Graphs 1. Relate the graph of an equation to itssolutions L8U
Also consider• Compare linear functions: graphs and
equations EA8
Textbook section IXL skills
Lesson 6: Equivalent Equations 1. Identify equivalent equations XNQ
Also consider• Identify equivalent linear expressions 62A
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• Simplify variable expressions usingproperties HHR
• Properties of equality H8Q
Lesson 7: Explaining Steps for Rewriting Equations 1. Solve equations: complete the solution EVP
2. Solve equations with variables on bothsides 7S7
3. Find the number of solutions KBP
Also consider• Solve linear equations: mixed review DN6
• Create equations with no solutions or infinitelymany solutions PUK
Lesson 8: Which Variable to Solve for? (Part 1)
Lesson 9: Which Variable to Solve for? (Part 2)
1. Rearrange multi-variable equations WSJ
Lesson 10: Connecting Equations to Graphs(Part 1)
1. Find the slope of a graph E7D
2. Standard form: graph an equation U6U
Also consider• Find the slope from two points MD5
• Slope-intercept form: graph an equation UWB
• Slope-intercept form: write an equation from aword problem HWM
• Write equations in standard form ESP
Lesson 11: Connecting Equations to Graphs(Part 2)
1. Linear equations: solve for y T5F
2. Standard form: find x- and y-intercepts 8SN
3. Slope-intercept form: find the slope and y-intercept R5T
Also consider• Find a missing coordinate using slope 5C7
• Slope-intercept form: write an equation from agraph 9GW
• Slope-intercept form: write an equation A42
• Slope-intercept form: write an equation from atable SSE
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Systems of Linear Equations in Two Variables
Textbook section IXL skills
Lesson 12: Writing and Graphing System of LinearEquations
1. Is (x, y) a solution to the system ofequations? LRL
2. Solve a system of equations by graphing TSS
3. Solve a system of equations by graphing: wordproblems BVB
Also consider• Write a system of equations given a graph R78
Lesson 13: Solving Systems by Substitution 1. Solve a system of equations usingsubstitution 8P9
Also consider• Solve a system of equations using substitution:
word problems US9
Lesson 14: Solving Systems by Elimination (Part 1) 1. Solve a system of equations by adding orsubtracting RMJ
Lesson 15: Solving Systems by Elimination (Part2)
Lesson 16: Solving Systems by Elimination (Part3)
1. Solve a system of equations usingelimination A48
2. Solve a system of equations using elimination:word problems NHR
Also consider• Solve a system of equations using any
method HLV
• Solve a system of equations using any method:word problems GDQ
Lesson 17: Systems of Linear Equations and TheirSolutions
1. Find the number of solutions to a system ofequations by graphing HJW
2. Find the number of solutions to a system ofequations ACN
Also consider• Classify a system of equations by graphing T2D
• Classify a system of equations LTA
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Linear Inequalities in One Variable
Linear Inequalities in Two Variables
Textbook section IXL skills
Lesson 18: Representing Situations withInequalities
1. Identify solutions to inequalities 5UE
Also consider• Graph inequalities H68
• Write inequalities from graphs SEK
Lesson 19: Solutions to Inequalities in OneVariable
1. Solve advanced linear inequalities 9K8
2. Graph solutions to advanced linearinequalities 5GC
Also consider• Solve two-step linear inequalities NPZ
• Graph solutions to two-step linearinequalities XVM
• Graph compound inequalities BQX
• Write compound inequalities from graphs 6UV
Lesson 20: Writing and Solving Inequalities in OneVariable
Textbook section IXL skills
Lesson 21: Graphing Linear Inequalities in TwoVariables (Part 1)
Lesson 22: Graphing Linear Inequalities in TwoVariables (Part 2)
1. Does (x, y) satisfy the inequality? N9L
2. Graph a two-variable linear inequality HHP
Also consider• Linear inequalities: solve for y UYU
Lesson 23: Solving Problems with Inequalities inTwo Variables
1. Linear inequalities: word problems ZAY
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Systems of Linear Inequalities in Two Variables
Textbook section IXL skills
Lesson 24: Solutions to Systems of LinearInequalities in Two Variables
Lesson 25: Solving Problems with Systems ofLinear Inequalities in Two Variables
Lesson 26: Modeling with Systems ofInequalities in Two Variables
1. Solve systems of linear inequalities bygraphing SGH
Also consider• Is (x, y) a solution to the system of
inequalities? VFC
Checkpoint opportunity 1. Checkpoint: Solve linear equations andinequalities VYL
2. Checkpoint: Systems of equations andinequalities LQW
3. Checkpoint: Represent constraints 2VV
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Unit 3Two-variable Statistics Two-way Tables
Scatter Plots
Textbook section IXL skills
Lesson 1: Two-way Tables
Lesson 2: Relative Frequency Tables 1. Find probabilities using two-way frequencytables 93R
2. Find conditional probabilities using two-wayfrequency tables BZZ
Lesson 3: Associations in Categorical Data
Textbook section IXL skills
Lesson 4: Linear Models 1. Write equations for lines of best fit Y2S
• Coming soon: Interpret lines of best fit: wordproblems
Also consider• Interpret a scatter plot 8BS
• Outliers in scatter plots EG5
Lesson 5: Fitting Lines 1. Analyze a regression line of a data set 8D8
Also consider• Find the equation of a regression line WJC
• Interpret regression lines SEQ
Lesson 6: Residuals • Coming soon: Calculate and plot residuals
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Correlation Coefficients
Estimating Lengths
Textbook section IXL skills
Lesson 7: The Correlation Coefficient 1. Match correlation coefficients to scatterplots FQ7
Lesson 8: Using the Correlation Coefficient 1. Calculate correlation coefficients E8T
Lesson 9: Causal Relationships 1. Correlation and causation KPG
Textbook section IXL skills
Lesson 10: Fossils and Flags
Checkpoint opportunity 1. Checkpoint: Two-way frequency tables 5GL
2. Checkpoint: Linear modeling U7N
3. Checkpoint: Units and quantities CBX
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Unit 4Functions Functions and Their Representations
Analyzing and Creating Graphs of Functions
Textbook section IXL skills
Lesson 1: Describing and Graphing Situations 1. Identify independent and dependentvariables N55
2. Identify functions: lists, tables, or discretegraphs XVU
Also consider• Identify functions: vertical line test HLX
Lesson 2: Function Notation 1. Interpret functions using everydaylanguage U98
Also consider• Evaluate a function JFB
Lesson 3: Interpreting & Using Function Notation 1. Interpret the graph of a function: wordproblems STU
Lesson 4: Using Function Notation to DescribeRules (Part 1)
1. Complete a function table from an equation Z73
2. Complete a table and graph a linearfunction JFG
Also consider• Complete a function table from a graph HXF
Lesson 5: Using Function Notation to DescribeRules (Part 2)
1. Find values using function graphs TJM
Textbook section IXL skills
Lesson 6: Features of Graphs
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A Closer Look at Inputs and Outputs
Lesson 7: Using Graphs to Find Average Rate ofChange
1. Rate of change: graphs BNH
• Coming soon: Estimate rate of change from agraph
Lesson 8: Interpreting and Creating Graphs 1. Interpret the slope and y-intercept of a linearfunction RPQ
• Coming soon: Identify graphs: word problems
Lesson 9: Comparing Graphs 1. Compare linear functions: tables, graphs, andequations GD7
• Coming soon: Compare linear functions: wordproblems
Textbook section IXL skills
Lesson 10: Domain and Range (Part 1)
Lesson 11: Domain and Range (Part 2) 1. Domain and range of relations 2CG
Also consider• Domain and range of exponential functions:
graphs ANC
• Domain and range of absolute value functions:graphs NV7
• Domain and range of square root functions:graphs UXG
Lesson 12: Piecewise Functions 1. Graph piecewise-defined functions 86G
Also consider• Evaluate piecewise-defined functions 86S
Lesson 13: Absolute Value Functions (Part 1)
Lesson 14: Absolute Value Functions (Part 2)
1. Graph an absolute value function TD2
2. Transformations of absolute value functions:translations and reflections 9TC
Also consider• Complete a function table: absolute value
functions 2DH
• Domain and range of absolute value functions:equations FCY
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Inverse Functions
Putting it All Together
Textbook section IXL skills
Lesson 15: Inverse Functions
Lesson 16: Finding and Interpreting InverseFunctions
Lesson 17: Writing Inverse Functions to SolveProblems
1. Find the inverse of a function VME
Textbook section IXL skills
Lesson 18: Using Functions to Model BatteryPower
Checkpoint opportunity Unit 41. Checkpoint: Function concepts HWA
Units 1–42. Checkpoint: Average rate of change T79
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Unit 5Introduction to Exponential Functions Looking at Growth
A New Kind of Relationship
Textbook section IXL skills
Lesson 1: Growing and Growing
Lesson 2: Patterns of Growth
1. Number sequences 9CK
Also consider• Exponents with integer bases EJ8
Textbook section IXL skills
Lesson 3: Representing Exponential Growth 1. Graph increasing exponential functions TWX
2. Exponential growth: word problems V84
Also consider• Multiplication with exponents HQD
• Evaluate expressions using properties ofexponents LRR
Lesson 4: Understanding Decay
Lesson 5: Representing Exponential Decay
1. Graph decreasing exponential functions BM7
2. Exponential decay: word problems 5CH
Also consider• Write variable expressions for arithmetic and
geometric sequences NDN
• Evaluate an exponential function D6H
Lesson 6: Analyzing Graphs 1. Identify linear and exponential functions fromgraphs UEC
Lesson 7: Using Negative Exponents 1. Negative exponents SCM
Also consider• Division with exponents 9SS
• Identify equivalent expressions involvingexponents I EUF
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Exponential Functions
Percent Growth and Decay
Textbook section IXL skills
Lesson 8: Exponential Situations as Functions
Lesson 9: Interpreting Exponential Functions
1. Write linear and exponential functions fromtables JGJ
Lesson 10: Looking at Rates of Change 1. Rate of change: tables PLA
Lesson 11: Modeling Exponential Behavior • Coming soon: Write linear and exponentialmodels: word problems
Lesson 12: Reasoning about ExponentialGraphs (Part 1)
Lesson 13: Reasoning about ExponentialGraphs (Part 2)
1. Match exponential functions and graphs 72J
Also consider• Domain and range of exponential functions:
equations DZE
Textbook section IXL skills
Lesson 14: Recalling Percent Change 1. Percent of change: find the original amount wordproblems 7UW
2. Percent of a number: tax, discount, andmore SKZ
Also consider• Percent word problems BLW
• Find the percent: tax, discount, and more VQX
Lesson 15: Functions Involving Percent Change 1. Multi-step problems with percents HBJ
Also consider• Simple interest Q8G
Lesson 16: Compounding Interest
Lesson 17: Different Compounding Intervals
1. Compound interest: word problems QSF
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Comparing Linear and Exponential Functions
Putting it All Together
Lesson 18: Expressed in Different Ways 1. Percent of change: word problems 59V
Also consider• Percent of change GRG
• Power rule RWY
Textbook section IXL skills
Lesson 19: Which One Changes Faster?
Lesson 20: Changes over Equal Intervals
1. Write linear and exponential functions: wordproblems T84
2. Describe linear and exponential growth anddecay S7T
3. Identify linear and exponential functions fromtables LZF
4. Compare linear and exponential growth YSZ
Also consider• Linear functions over unit intervals L5P
• Exponential functions over unit intervals S7D
Textbook section IXL skills
Lesson 21: Predicting Populations
Checkpoint opportunity 1. Checkpoint: Compare linear and exponentialfunctions KSL
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Unit 6Introduction to Quadratic Functions A Different Kind of Change
Quadratic Functions
Textbook section IXL skills
Lesson 1: A Different Kind of Change
Lesson 2: How Does it Change?
1. Identify linear, quadratic, and exponentialfunctions from tables SP5
2. Identify linear, quadratic, and exponentialfunctions from graphs DHB
Textbook section IXL skills
Lesson 3: Building Quadratic Functions fromGeometric Patterns
Lesson 4: Comparing Quadratic and ExponentialFunctions
1. Compare linear, exponential, and quadraticgrowth 39V
Also consider• Write linear, quadratic, and exponential
functions from tables AFA
Lesson 5: Building Quadratic Functions toDescribe Situations (Part 1)
Lesson 6: Building Quadratic Functions toDescribe Situations (Part 2)
Lesson 7: Building Quadratic Functions toDescribe Situations (Part 3)
• Coming soon: Interpret parts of quadraticexpressions: word problems
Also consider• Complete a function table: quadratic
functions LFV
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Working with Quadratic Expressions
Features of Graphs of Quadratic Functions
Textbook section IXL skills
Lesson 8: Equivalent Quadratic Expressions 1. Multiply polynomials using area models H8B
2. Multiply two binomials M7Q
Also consider• Multiply using the distributive property KWG
• Multiply two binomials using algebra tiles WR5
Lesson 9: Standard Form and Factored Form
Lesson 10: Graphs of Functions in Standard andFactored Forms
1. Use zeros to match quadratic functions andgraphs WSX
Also consider• Characteristics of quadratic functions:
equations YJZ
• Write a quadratic function from its zeros N2S
• Multiply two binomials: special cases 9JN
Textbook section IXL skills
Lesson 11: Graphing from the Factored Form
Lesson 12: Graphing the Standard Form (Part 1)
Lesson 13: Graphing the Standard Form (Part 2)
1. Match quadratic functions and graphs AU8
Also consider• Characteristics of quadratic functions:
graphs HW8
Lesson 14: Graphs That Represent Situations
Lesson 15: Vertex Form
Lesson 16: Graphing from the Vertex Form
Lesson 17: Changing the Vertex
1. Graph quadratic functions in vertex form C7T
2. Transformations of quadratic functions 6YS
Also consider• Graph quadratic functions in standard
form HMW
Checkpoint opportunity 1. Checkpoint: Function transformations QKX
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Unit 7Quadratic Equations Finding Unknown Inputs
Solving Quadratic Equations
Textbook section IXL skills
Lesson 1: Finding Unknown Inputs
Lesson 2: When and Why Do We WriteQuadratic Equations?
Textbook section IXL skills
Lesson 3: Solving Quadratic Equations byReasoning
1. Solve a quadratic equation using squareroots ERF
Lesson 4: Solving Quadratic Equations with theZero Product Property
1. Solve a quadratic equation using the zeroproduct property TNM
Lesson 5: How Many Solutions?
Lesson 6: Rewriting Quadratic Expressions inFactored Form (Part 1)
Lesson 7: Rewriting Quadratic Expressions inFactored Form (Part 2)
1. Factor quadratics with leading coefficient 1 S9P
Also consider• Factor quadratics using algebra tiles Y6U
Lesson 8: Rewriting Quadratic Expressions inFactored Form (Part 3)
1. Factor quadratics: special cases 56E
Lesson 9: Solving Quadratic Equations by UsingFactored Form
1. Solve quadratic equations by factoring: leadingcoefficient 1 J2X
Lesson 10: Rewriting Quadratic Expressions inFactored Form (Part 4)
1. Solve quadratic equations by factoring: otherleading coefficients 2QD
2. Factor quadratics with other leadingcoefficients 7ED
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Completing the Square
The Quadratic Formula
Also consider• Factor using a quadratic pattern ADW
• Solve quadratic equations by factoring:differences of squares WXJ
• Factor by grouping HAA
Textbook section IXL skills
Lesson 11: What are Perfect Squares? 1. Factor quadratics: perfect squares 56C
2. Solve quadratic equations by factoring: perfectsquares Q5E
Lesson 12: Completing the Square (Part 1)
Lesson 13: Completing the Square (Part 2)
1. Complete the square RD2
2. Solve a quadratic equation by completing thesquare: leading coefficient 1 WZE
Lesson 14: Completing the Square (Part 3) 1. Solve a quadratic equation by completing thesquare: other leading coefficients C7E
Lesson 15: Quadratic Equations with IrrationalSolutions
Textbook section IXL skills
Lesson 16: The Quadratic Formula 1. Solve a quadratic equation using the quadraticformula XCF
Lesson 17: Applying the Quadratic Formula(Part 1)
Lesson 18: Applying the Quadratic Formula(Part 2)
• Coming soon: Solve quadratic equations: wordproblems
Also consider• Using the discriminant SMF
Lesson 19: Deriving the Quadratic Formula
Lesson 20: Rational and Irrational Solutions
Lesson 21: Sums and Products of Rational andIrrational Numbers
1. Identify rational and irrational square roots SNP
2. Properties of operations on rational andirrational numbers C7S
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Vertex Form Revisited
Putting it All Together
Also consider• Sort rational and irrational numbers ALH
• Classify rational and irrational numbers 3S8
Textbook section IXL skills
Lesson 22: Rewriting Quadratic Expressions inVertex Form
1. Write a quadratic function in vertex form W2Q
Also consider• Write a quadratic function from its vertex and
another point YGV
• Domain and range of quadratic functions:equations 4J7
Lesson 23: Using Quadratic Expressions in VertexForm to Solve Problems
Textbook section IXL skills
Lesson 24: Using Quadratic Equations to ModelSituations and Solve Problems
1. Solve a system of linear and quadratic equationsby graphing 9EE
Checkpoint opportunity Unit 71. Checkpoint: Quadratic equations NXG
Units 1–72. Checkpoint: Polynomial operations 2B7
3. Checkpoint: Problem solving with equations andinequalities QZQ
4. Checkpoint: Solve equations using graphs andtables DV9
5. Checkpoint: Write and interpret equivalentexpressions YJJ
6. Checkpoint: Features of functions N7U
7. Checkpoint: Graph and analyze functions ZKZ
8. Checkpoint: Build functions CP9
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