# 8th Grade Math Games

Play select games from the ST Math eighth grade curriculum for free. Concepts include exponents, graphing linear equations, and solving linear equations.

## Integer Exponents

Represent an exponential growth pattern using exponents and exponential notation.
• Represent visual models of exponential change with integer exponents.
• Interpret exponential functions as visual growth patterns (positive integers) or shrinking patterns (negative integers).
• Levels begin with positive exponential growth and progress to seeing negative integers as an inverse function.

## Linear Balloons Graphs

Change slope and y-intercept values to pop balloons plotted in a straight line.
• Manipulate the y-intercept values that form a line going through balloons plotted on a graph.
• Change the y-intercept and slope on a graph and see how the values change in a linear equation in slope-intercept form.
• Levels begin with visually manipulating the y-intercept so the given line will pop balloons and progress to comparing changes in the graph to changes in the corresponding equation.

## Linear Balloons Tables

Fill in table values and plot points using a linear equation.
• Solve linear equations using a table in slope-intercept form.
• Represent linear equations using tables and graphs.
• Levels begin by finding the y-value on a table, then progress to plotting points using linear equations and y-values.

## Model Graph with Equation

Find the value of the slope and y-intercept in linear equations given a graph of the line.
• Interpret a line's slope and y-intercept and represent them in a linear equation in slope-intercept form.
• Use changes in x and y-values to identify the slope of a line and the y-intercept of a line as the point where x=0.
• Levels start with slopes = 1 and y-intercepts at the origin and progress to more challenging slopes and y-intercepts.

## Solve Linear Equations

Solve visual equations of the form px = r, where p and x are positive rational numbers (of the form a/b).
• Visual puzzles pose two-step problems that have students work backwards from a given total number of blocks needed and select the starting quantity of blocks.
• Use the visual model to reason about linear relationships px = r where p and x are rational numbers.
• Levels start by posing problems with whole number coefficients, then progress to using rational number coefficients.

## Eighth Grade Math Resources

Educators, ready to learn about the full ST Math experience?