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Virginia Standards

8th Grade Math SOL

All 16 Virginia math standards for 8th grade, each explained in plain English. The official wording is in Virginia Department of Education's document, linked at the end of this page.

16 standards

Number and Number Sense

2 standards
8.NS.1
Find the two whole numbers a square root lies between, approximate irrational numbers to hundredths, and order up to five real numbers including radicals and pi.
8.NS.2
Sort numbers into natural, whole, integer, rational and irrational sets, show how the sets nest inside the real numbers, and explain why a number belongs to each set.

Computation and Estimation

1 standard
8.CE.1
Estimate and calculate sale prices after a discount or markup, sales tax and tips with the final total, and percent increase or decrease in real situations.

Measurement and Geometry

5 standards
8.MG.1
Identify vertical, adjacent, supplementary and complementary angle pairs, and use how they relate, like supplementary angles adding to 180°, to find unknown angles.
8.MG.2
Find the surface area of square pyramids and the volume of cones and square pyramids with nets and formulas, and explain why a cone holds a third of a matching cylinder.
8.MG.3
Translate polygons and reflect them across the x- or y-axis on a coordinate grid, give the new coordinates, sketch the images, and spot these moves in tiling designs.
8.MG.4
Verify the Pythagorean Theorem, name a right triangle's legs and hypotenuse, find a missing side from the other two, and use the converse to test for a right triangle.
8.MG.5
Split composite figures into triangles, rectangles, trapezoids, parallelograms and parts of circles to find their area and perimeter, like a room's floor plan.

Probability and Statistics

3 standards
8.PS.1
Tell whether two events are independent or dependent, explain how drawing with or without replacement changes the probability, and find the chance of both happening.
8.PS.2
Make a boxplot from up to 20 values, read its median, quartiles and interquartile range, compare two boxplots, weigh bias and outliers, and spot misleading graphs.
8.PS.3
Collect up to 20 paired data values, plot them on a scatterplot, describe the trend as positive, negative or none, and sketch a line of best fit.

Patterns, Functions, and Algebra

5 standards
8.PFA.1
Model expressions with algebra tiles, then rewrite them in simpler equivalent form by distributing and combining like terms, like 2x + 5x - 3 becoming 7x - 3.
8.PFA.2
Decide whether a set of up to 10 ordered pairs, a table or a graph of points is a function, and name its domain and range.
8.PFA.3
Graph linear functions from tables, equations or stories, find the slope and y-intercept, write equations like y = 2x + 3, and see how adding b shifts the line y = mx.
8.PFA.4
Solve equations of up to four steps with variables on one or both sides, using distribution and like terms, then check and interpret the answers in real situations.
8.PFA.5
Solve inequalities of up to four steps with variables on both sides, graph the solutions on a number line, and write and interpret inequalities for real situations.

The official Virginia documents

The plain-English lines on this page are EMStudio's own explanations of Virginia's standards, not the official wording, which Virginia Department of Education publishes in the documents above. Codes and strand names identify each standard.