8th grade · Expressions & Equations
Use 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*.
4 interactive, auto-graded activities for 8th grade students practising 8.EE.B.6. Mini Labs put the standard to work in a real scenario; Skill Practice builds fluency on the standard alone. Every one is randomized per student, so each learner gets their own numbers.
Explore slope through hands-on experiments! Students use sliders to measure rise (Δy) and run (Δx) between two points, calculate slope, and compare lines with positive and negative slopes. A visual, interactive way to understand steepness, direction, and why slope stays constant on a linear graph.
Students explore real-world linear relationships by analyzing graphs, identifying slope and y-intercept, and writing equations in slope-intercept form. Using real data from everyday scenarios, they model situations, create equations, and predict unknown values. Ideal for building conceptual understanding of y=mx+b.
Students compare real-world linear models by analyzing graphs, identifying slope and y-intercept, writing equations in slope-intercept form, and predicting values. Through an internet plan comparison, learners use equations to determine the better option for low and high usage, building strong conceptual understanding of linear relationships.
Labs run 2 to 4 class periods and connect several standards into one project.
Curbside is an interactive Grade 8 math lab where students run a food truck and use real math to decide if it makes money. Across 7 auto-graded worksheets they build revenue, cost, break-even, and profit, compare competitors, and weigh a marketing curve. A hands-on way to make expressions, equations, and functions feel real. Common Core aligned (8.EE, 8.F).
Preview any activity for free. Create a free teacher account to assign it to your class, see every student's work live, and get results auto-graded.
