8th grade · Functions
Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). *For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change*.
3 interactive, auto-graded activities for 8th grade students practising 8.F.A.2. 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.
Students compare two linear functions represented in algebraic and graphical form to determine which changes faster. Using real-world energy usage scenarios, students identify slopes and y-intercepts, interpret positive and negative rates of change, and justify comparisons. Aligned to CCSS 8.F.A.2 and ideal for practice or assessment.
Students compare two linear functions represented in different forms: one as an algebraic equation and the other as a table of values. Using real-world company operations like production, inventory, and order fulfillment, students identify slopes and intercepts to determine which function changes faster and justify their reasoning.
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).
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