Will this help with my child's 8th grade math homework?

Yes. StudyPug covers every topic in Delaware's 8th grade math curriculum, from solving linear equations to applying the Pythagorean Theorem, so your child can find help for exactly what was assigned in class.

How long are the video lessons?

Most video lessons run between 5 and 15 minutes, short enough to watch before homework and focused on one concept at a time so students can quickly find the topic they need.

Is there a Delaware state test for 8th grade math?

Yes. Delaware students in 8th grade take the Delaware Comprehensive Assessment System (DCAS) math test. StudyPug lessons are aligned to the Delaware Content Standards that the assessment is based on.

Can my child use StudyPug on a tablet or phone?

Yes. StudyPug works on tablets, phones, and desktop computers, so your child can watch lessons and complete practice problems from any device, whether at home or on the go.

Can I try StudyPug before paying?

Yes. StudyPug offers free sample lessons so you can explore the content before subscribing. There is also a 30-day money-back guarantee, so you can sign up with confidence.

DE 8th Grade Math Curriculum

Give your child the support they need to keep up with Delaware's 8th grade math curriculum. Step-by-step video lessons and practice problems cover every strand taught in class.

DE 8th Grade Math Curriculum

IDStandardStudyPug Topic

8.NS.A.1Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.
- Rational vs. Irrational numbers
- Understanding the number systems
8.NS.A.2Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π2).
- Converting repeating decimals to fractions
- Determine square roots of rational numbers
- Estimating square roots
8.EE.A.1Know and apply the properties of integer exponents to generate equivalent numerical expressions.
- Product rule of exponents
- Quotient rule of exponents
- Power of a product rule
- Power of a quotient rule
- Power of a power rule
- Using exponents to describe numbers
- Exponent rules
- Order of operations with exponents
8.EE.A.2Use square root and cube root symbols to represent solutions to equations of the form x2 = p and x3 = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. Know that √2 is irrational.
- Cubic and cube roots
- Square and square roots
- Converting radicals to mixed radicals
- Converting radicals to entire radicals
- Squares and square roots
8.EE.A.3Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other.
- Scientific notation
8.EE.B.5Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different ways.
- Parallel and perpendicular lines in linear functions
- Understanding graphs of linear relationships
- Understanding tables of values of linear relationships
- Applications of linear relationships
- Identifying proportional relationships
8.EE.B.6Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.
- Slope intercept form: y = mx + b
- Slope equation: $m = \frac{y_2-y_1}{x_2- x_1}$
8.EE.C.7Solve linear equations in one variable.
- Introduction to linear equations
- Model and solve one-step linear equations: ax = b, x/a = b
- Solving two-step linear equations using addition and subtraction: ax + b = c
- Solving two-step linear equations using multiplication and division: x/a + b = c
- Solving two-step linear equations using distributive property: a(x + b) = c
- Solving literal equations
8.EE.C.8Analyze and solve pairs of simultaneous linear equations.
- Solving systems of linear equations by graphing
- Determining number of solutions to linear equations
- Solving systems of linear equations by elimination
- Solving systems of linear equations by substitution
8.F.A.1Understand that a function is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and the corresponding output.
- Identifying functions
- Relationship between two variables
8.F.A.2Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions).
- Function notation
8.F.B.4Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.
- Applications of linear relations
8.F.B.5Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or nonlinear). Sketch a graph that exhibits the qualitative features of a function that has been described verbally.
- Graphing linear functions using table of values
8.G.A.1Verify experimentally the properties of rotations, reflections, and translations.
- Tessellations using translations and reflections
- Line symmetry
8.G.A.2Understand that a two-dimensional figure is congruent to another if the second can be obtained from the first by a sequence of rotations, reflections, and translations; given two congruent figures, describe a sequence that exhibits the congruence between them.
- Rotational symmetry and transformations
8.G.A.3Describe the effect of dilations, translations, rotations, and reflections on two-dimensional figures using coordinates.
- Tessellations using rotations
- Enlargements and reductions with scale factors
8.G.A.4Understand that a two-dimensional figure is similar to another if the second can be obtained from the first by a sequence of rotations, reflections, translations, and dilations; given two similar two-dimensional figures, describe a sequence that exhibits the similarity between them.
- Similar polygons
8.G.A.5Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.
- Similar triangles
8.G.B.6Explain a proof of the Pythagorean Theorem and its converse.
- Pythagorean theorem
8.G.B.7Apply the Pythagorean Theorem to determine unknown side lengths in right triangles in real-world and mathematical problems in two and three dimensions.
- Using the pythagorean relationship
8.G.B.8Apply the Pythagorean Theorem to find the distance between two points in a coordinate system.
- Applications of pythagorean theorem
- Distance formula: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$
8.G.C.9Know the formulas for the volumes of cones, cylinders, and spheres and use them to solve real-world and mathematical problems.
- Word problems relating volume of prisms and cylinders
- Surface area and volume of cones
- Surface area and volume of spheres
- Volume of cylinders
8.SP.A.1Construct and interpret scatter plots for bivariate measurement data to investigate patterns of association between two quantities. Describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association.
- Reading linear relation graphs
- Box-and-whisker plots and scatter plots
8.SP.A.2Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.
- Solving linear equations by graphing

8th Grade Math

About 8th Grade Delaware math

Delaware follows the Delaware Content Standards for mathematics, organized around Number System, Expressions and Equations, Functions, Geometry, and Statistics and Probability. In 8th grade, students work with rational and irrational numbers, integer exponents and scientific notation, linear equations and systems, functions, transformations and similarity, the Pythagorean Theorem, volume formulas, and bivariate data. StudyPug provides video lessons, practice problems, and step-by-step explanations aligned to every strand.

Strands: Number System, Expressions and Equations, Functions, Geometry, and Statistics and Probability
Video lessons for every 8th grade math topic
Practice problems and step-by-step explanations aligned to Delaware Content Standards
Works on any device so your child can study at home or on the go

Curriculum topics by strand

Browse lessons and practice problems organized by strand and aligned to Delaware Content Standards for 8th grade math.

Topic includes:

Practice

Video

Quiz

Standard

StudyPug Topic

Delaware 8th Grade Math Topics

The Number System: Understanding rational and irrational numbers, decimal expansions, and rational approximations of irrational numbers on the number line.
Expressions and Equations: Properties of integer exponents, square and cube roots, scientific notation, linear equations in one variable, and systems of simultaneous linear equations.
Functions: Defining and comparing functions, interpreting linear functions of the form y = mx + b, modeling linear relationships, and analyzing graphs qualitatively.
Geometry: Rotations, reflections, translations, dilations, congruence and similarity, angle relationships with parallel lines and triangles, the Pythagorean Theorem and its converse, and volumes of cones, cylinders, and spheres.
Statistics and Probability: Scatter plots, patterns of association, linear models for bivariate data, and two-way tables for categorical data.

How StudyPug Helps Delaware 8th Grade Math Students

When a student gets stuck on slope, scientific notation, or the Pythagorean Theorem, StudyPug lets them go back to the exact lesson they need rather than waiting for the next class. Short video lessons walk through each concept step by step, and practice problems with worked examples let students check their understanding right away. You can explore all available lessons with our 8th grade math notes or test what your child already knows with an 8th grade math quiz.

StudyPug also helps families plan ahead. If your child needs a refresher on the topics covered in 7th grade before tackling 8th grade material, reviewing the DE grade 7 math curriculum is a great starting point.

Aligned to Delaware 8th Grade Math Curriculum

All StudyPug lessons for 8th grade math are aligned to the Delaware Content Standards, the same standards used to build classroom instruction and state assessments in Delaware. Every strand -- from the Number System through Statistics and Probability -- is covered so students are always working on material that matches what their teacher expects.

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Written by the StudyPug Math Team

Last updated June 5, 2026

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