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Indiana Math Standards - 8th Grade
MathScore aligns to the Indiana Math Standards for 8th 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 Indiana Math Standards at other levels.
Number Sense and Computation
8.1.1 Interpret calculator or computer displays of numbers given in scientific notation and read, write, compare and solve problems using decimals in scientific notation. (Scientific Notation 2 , Scientific Notation )8.1.2 Recognize positive integer powers as repeated multiplication and negative integer powers as repeated division or multiplication by the multiplicative inverse. (Exponent Basics , Negative Exponents Of Fractional Bases )
8.1.3 Use the laws of exponents for integer exponents and evaluate expressions with negative integer exponents. (Simplifying Algebraic Expressions 2 , Exponent Basics , Exponents Of Fractional Bases , Negative Exponents Of Fractional Bases , Multiplying and Dividing Exponent Expressions , Exponent Rules For Fractions )
8.1.4 Identify, compare and order irrational numbers.
8.1.5 Calculate square roots of perfect squares, estimate square roots of numbers less than 1,000, and use the inverse relationship between squares and square roots. (Estimating Square Roots , Perfect Squares )
8.1.6 Solve percent, ratio and proportion problems.
• Find average rates. (Distance, Rate, and Time )
• Express one quantity as a percentage of another. (Percent of Quantity )
• Compare two quantities by percentage. (Percentage Change )
• Use percentages greater than 100%. (Percentage Change , Percent of Quantity )
• Increase or decrease a quantity by a given percentage. (Percentage Change )
• Find the original amount for a given percentage increase or decrease.
• Solve problems involving percents, ratios and proportions. (Purchases At Stores , Restaurant Bills , Commissions , Proportions 2 , Distance, Rate, and Time )
• Solve problems involving simple and compound interest. (Simple Interest , Compound Interest )
Algebra and Functions
8.2.1 Write and solve linear equations and inequalities, interpret the solution or solutions in their context, and verify the reasonableness of the results. (Single Variable Equations 2 , Single Variable Equations 3 , Single Variable Inequalities , Algebraic Word Problems )8.2.2 Solve equations and formulas for a specified variable. (Triangle Area 2 , Rectangular Solids 2 , Single Variable Equations , Single Variable Equations 2 , Single Variable Equations 3 , Distance, Rate, and Time , Two Variable Equations )
8.2.3 Simplify algebraic expressions involving powers. (Simplifying Algebraic Expressions , Simplifying Algebraic Expressions 2 , Variable Substitution 2 , Multiplying and Dividing Exponent Expressions , Exponent Rules For Fractions )
8.2.4 Identify and graph linear functions and identify lines with positive and negative slope. (Determining Slope , Graphs to Linear Equations , Graphs to Linear Equations 2 )
8.2.5 Find the slope of a linear function given the equation and write the equation of a line given the slope and any point on the line. (Applied Linear Equations 1 )
8.2.6 Translate among tables, equations, verbal expressions and graphs of linear functions and recognize that in (y = mx + b) that m is the rate of change and b is the vertical intercept of the graph. (Graphs to Linear Equations , Applied Linear Equations 1 )
8.2.7 Identify functions as linear or nonlinear and contrast their characteristics from tables, graphs and equations. (Nonlinear Functions )
8.2.8 Use linear functions and linear equations to represent, analyze and solve problems.
Geometry and Measurement
8.3.1 Perform basic compass and straight edge constructions: angle and segment bisectors, copies of segments and angles, and perpendicular segments. Describe and justify the constructions. (Requires outside materials )8.3.2 Identify, define, and describe properties of three-dimensional geometric objects, describe how two or more figures intersect in a plane or in space, and visualize or describe the cross section of a solid.
8.3.3 Explain why the Pythagorean Theorem is valid using a variety of methods and use the Pythagorean Theorem and its converse to calculate lengths of line segments. (Pythagorean Theorem )
8.3.4 Solve simple problems involving rates and other derived measurements, including problems involving speed, uniform speed, average speed and density, by applying the concept of proportionality to measurement in different contexts. Express measurements in a given unit or in terms of other units of the same type. (Distance, Rate, and Time )
8.3.5 Use scale factors to find the area and volume of similar figures. (Area And Volume Proportions )
8.3.6 Find and use the surface area and volume of cones, spheres and pyramids.
8.3.7 Estimate and compute the area of irregular two-dimensional shapes and the volume of irregular three-dimensional objects by breaking them down into more basic geometric objects. (Irregular Shape Areas )
8.3.8 Solve problems involving conversions within the same measurement system and estimate the measure of an object in one system given the measure of that object in another system and the approximate conversion factor. (Time Intervals , Distance Conversion , Time Conversion , Volume Conversion , Weight Conversion , Temperature Conversion , Area and Volume Conversions )
Data Analysis and Probability
8.4.1 Identify claims based on statistical data and, in simple cases, evaluate the reasonableness of the claims. Design a study to investigate the claim.8.4.2 Identify different methods of selecting samples, analyzing the strengths and weaknesses of each method and the possible bias in a sample or display.
8.4.3 Use mean, median, mode, upper and lower quartiles and range to compare data sets. Organize and display data to highlight important features such as the range and how the data is spread around a central value. Investigate what happens to the display when some of the data values are changed. (Mean, Median, Mode , Stem And Leaf Plots )
8.4.4 Analyze, interpret and display data in box-and-whisker plots.
8.4.5 Display two-variable data in scatter plots and describe how the data points are distributed. If the pattern appears to be linear, draw a line that appears to best fit the data and write the equation of that line.
8.4.6 Describe and apply the addition rule for probabilities for simple events that are mutually exclusive and for simple events that are not.
8.4.7 Compute probabilities of events from simple experiments with equally probable outcomes, using such methods as organized list, tree diagrams and area models. (Probability )
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