Skill plan for the ACT® Aspire - Math 8th grade
IXL provides skill alignments with recommended IXL skills for every student. Find the IXL skills that are right for you below!
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Emerging
The Number System
Approximate multiples of pi
Approximate multiples of pi
Approximate irrational numbers with a calculator
Approximate irrational numbers with a calculator
Expressions and Equations
Recognize positive, negative, zero, and undefined slopes
Recognize positive, negative, zero, and undefined slopes
Substitute values to solve variable equations
Substitute values to solve variable equations
Understand the solution to a system of equations as the intersection point of the lines
Understand the solution to a system of equations as the intersection point of the lines
Understand numbers written in scientific notation
Understand numbers written in scientific notation
Use substitution and the structure of an equation to test solutions
Use substitution and the structure of an equation to test solutions
Functions
Evaluate functions
Evaluate functions
Identify positive or negative slopes
Identify positive or negative slopes
Use the structure of functions to identify related quantities
Use the structure of functions to identify related quantities
Geometry
Identify corresponding parts of congruent triangles
Identify corresponding parts of congruent triangles
Recognize similar figures
Recognize similar figures
Identify congruent and supplementary angles when parallel lines are cut by a transversal
Identify congruent and supplementary angles when parallel lines are cut by a transversal
Know when to apply the Pythagorean theorem
Know when to apply the Pythagorean theorem
Identify parts of cylinders
Identify parts of cylinders
Identify three-dimensional figures and their components
Identify three-dimensional figures and their components
Statistics and Probability
Recognize nearly linear trends
Recognize nearly linear trends
Create scatter plots
Create scatter plots
Modeling
Relate quantities to solve problems involving up to two steps
Mathematical contexts
Real-world contexts
Relate quantities to solve problems involving up to two steps
Mathematical contexts
Real-world contexts
Understand and use coordinate planes
Understand and use coordinate planes
Identify parts of linear models
Identify parts of linear models
Justification and Explanation
Use conditional statements
Use conditional statements
Create visual representations
Create visual representations
Explain procedures
Explain procedures
Provide counterexamples
Provide counterexamples
Use patterns to draw conclusions
Use patterns to draw conclusions
Integrating Essential Skills
Recognize perfect squares
Recognize perfect squares
Understand rational numbers in decimal form
Understand rational numbers in decimal form
Write and solve one-step equations
Write and solve one-step equations
Graph geometric figures
Graph geometric figures
Solve problems that include mean and range
Solve problems that include mean and range
Close
The Number System
Compare and order rational and irrational numbers
Compare and order rational and irrational numbers
Estimate square roots
Estimate square roots
Use decimal expansions to differentiate between rational and irrational numbers
Use decimal expansions to differentiate between rational and irrational numbers
Expressions and Equations
Find square roots of perfect squares
Find square roots of perfect squares
Convert between standard form and scientific notation
Convert between standard form and scientific notation
Find slope using graphs
Find slope using graphs
Understand slope of vertical lines
Understand slope of vertical lines
Estimate solutions to systems of equations
Estimate solutions to systems of equations
Solve equations with variables on one side of the equal sign
Solve equations with variables on one side of the equal sign
Understand that division by zero is undefined
Understand that division by zero is undefined
Understand that the solution to a system of equations is the intersection point on the graph
Understand that the solution to a system of equations is the intersection point on the graph
Functions
Write linear functions from tables
Write linear functions from tables
Geometry
Perform vertical or horizontal translations
Perform vertical or horizontal translations
Find scale factors of similar figures
Find scale factors of similar figures
Recognize that corresponding angles of similar figures are congruent
Recognize that corresponding angles of similar figures are congruent
Find the volume of cylinders
Find the volume of cylinders
Statistics and Probability
Identify positive and negative trends in scatter plots
Identify positive and negative trends in scatter plots
Draw lines of best fit
Draw lines of best fit
Modeling
Identify important information and relationships to solve problems and interpret the results
Identify important information and relationships to solve problems and interpret the results
Identify parts of the coordinate plane
Identify parts of the coordinate plane
Use equations to solve problems
Use equations to solve problems
Justification and Explanation
Use conditional statements, visual representations, computations, and procedures
Use conditional statements, visual representations, computations, and procedures
Support claims and draw conclusions
Support claims and draw conclusions
Integrating Essential Skills
Create expressions and equations from data
Expressions
Equations
Create expressions and equations from data
Expressions
Equations
Create and solve linear equations
Create and solve linear equations
Apply simple theorems about angles
Apply simple theorems about angles
Use measures of central tendency to solve problems
Use measures of central tendency to solve problems
Use samples to draw conclusions about populations
Use samples to draw conclusions about populations
Convert units within and between measurement systems
Convert units within and between measurement systems
Use place value
Use place value
Compare and order numbers
Compare and order numbers
Ready
The Number System
Understand irrational number approximations can't be exact
Understand irrational number approximations can't be exact
Convert repeating decimals to fraction form
Convert repeating decimals to fraction form
Expressions and Equations
Estimate square roots of decimals
Estimate square roots of decimals
Identify linear relationships
Identify linear relationships
Use graphs to determine the number of solutions to systems of equations
Use graphs to determine the number of solutions to systems of equations
Compare and order numbers written in scientific notation
Compare and order numbers written in scientific notation
Solve systems of equations algebraically
Solve systems of equations algebraically
Solve linear equations
Solve linear equations
Recognize constant average rate of change
Recognize constant average rate of change
Functions
Match linear equations to data tables
Match linear equations to data tables
Recognize graphs of linear functions in context
Recognize graphs of linear functions in context
Match linear equations and graphs
Match linear equations and graphs
Draw conclusions from graphs
Draw conclusions from graphs
Use graphs to understand solutions
Use graphs to understand solutions
Geometry
Perform reflections over an axis
Perform reflections over an axis
Find the measures of angles formed by parallel lines cut by a transversal
Find the measures of angles formed by parallel lines cut by a transversal
Use graphs to identify parallel or perpendicular lines
Use graphs to identify parallel or perpendicular lines
Find distances between two points on the coordinate plane using the Pythagorean theorem
Find distances between two points on the coordinate plane using the Pythagorean theorem
Use proportions to solve problems about similar figures
Use proportions to solve problems about similar figures
Find the volume of cylinders in real-world problems
Find the volume of cylinders in real-world problems
Statistics and Probability
Approximate lines of best fit
Approximate lines of best fit
Identify positive and negative associations in two-way tables
Identify positive and negative associations in two-way tables
Modeling
Write linear functions to model relationships between two quantities
Write linear functions to model relationships between two quantities
Graph linear equations and systems of equations
Linear equations
Systems of equations
Graph linear equations and systems of equations
Linear equations
Systems of equations
Solve linear equations
Solve linear equations
Justification and Explanation
Justify conclusions by verifying claims, explaining errors in reasoning, and providing counterexamples
Justify conclusions by verifying claims, explaining errors in reasoning, and providing counterexamples
Integrating Essential Skills
Round numbers to order and compare
Round numbers to order and compare
Graph solutions to inequalities
Graph solutions to inequalities
Understand range as the spread of data
Understand range as the spread of data
Find probabilities of compound events
Find probabilities of compound events
Exceeding
The Number System
Understand that sums of rational numbers are also rational
Understand that sums of rational numbers are also rational
Expressions and Equations
Understand relationships between negative exponents and reciprocals
Understand relationships between negative exponents and reciprocals
Write systems of linear equations from real-world problems
Write systems of linear equations from real-world problems
Create and solve linear equations for real-world situations
Create and solve linear equations for real-world situations
Perform operations with numbers in scientific notation
Perform operations with numbers in scientific notation
Use properties of exponents and the structure of expressions containing exponents
Use properties of exponents and the structure of expressions containing exponents
Functions
Write functions to model a real-world scenarios
Write functions to model a real-world scenarios
Geometry
Understand that side lengths in similar figures are proportional
Understand that side lengths in similar figures are proportional
Make conjectures about angle relationships when parallel lines are cut by a transversal
Make conjectures about angle relationships when parallel lines are cut by a transversal
Apply properties of similar and congruent figures
Apply properties of similar and congruent figures
Statistics and Probability
Write and use lines of best fit
Write and use lines of best fit
Modeling
Interpret, evaluate, and improve linear models to solve problems
Interpret, evaluate, and improve linear models to solve problems
Justification and Explanation
Support claims with evidence and clear solution paths
Support claims with evidence and clear solution paths
Thoroughly justify conclusions by explaining errors in reasoning and providing counterexamples
Linear equations
Linear functions
Thoroughly justify conclusions by explaining errors in reasoning and providing counterexamples
Linear equations
Linear functions
Integrating Essential Skills
Understand the role of random sampling
Understand the role of random sampling
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