Two racers arrive in different forms — one a line on the graph, the other a table, equation or sentence — and the player drags a handle to any grid point on the second racer's line so both sit on one graph, where the steeper line is the faster racer.
Two proportional relationships are given in different ways — racer A as a line through the origin, racer B as a table, an equation like d = 3t, or a sentence such as 'runs 3 meters per second' — and the player drags B's handle to any grid point (x, rate × x) so B's line appears on the same graph, then reads which racer is faster from which line is steeper and dials the lead per unit as the gap between the lines at x = 1. Building the line from the unit rate makes slope and unit rate the same object, and the duel mode asks for both racers from non-graph forms. It targets the misconception that a table, an equation and a graph of the same rate cannot be compared directly. Best for Grade 8 (8.EE.5).
A free, no-signup, no-ads math game for Grade 8 — practising proportional-relationships, unit-rate, slope, compare-rates, multiple-representations. Play in your browser on the KidsDoMath games hub or explore more Ratios & Rates games.
By grade level: 8th Grade Math Games
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What math does Rate Race Track practice? Rate Race Track practices Proportional Relationships, Unit Rate, Slope, Compare Rates. Two proportional relationships are given in different ways — racer A as a line through the origin, racer B as a table, an equation like d = 3t, or a sentence such as 'runs 3 meters per second' — and the player drags B's handle to any grid point (x, rate × x) so B's line appears on the same graph, then reads which racer is faster from which line is steeper and dials the lead per unit as the gap between the lines at x = 1.
What grade is Rate Race Track for? Rate Race Track is built for Grade 8 (ages 13–14). It sits in the Ratios & Rates strand, and it ramps across 8 levels so younger or older players find their own pace.
How do you play Rate Race Track? Two racers arrive in different forms — one a line on the graph, the other a table, equation or sentence — and the player drags a handle to any grid point on the second racer's line so both sit on one graph, where the steeper line is the faster racer.
Is Rate Race Track free to play? Yes. Rate Race Track is free, with no ads and no sign-up, and it runs in the browser on a phone, tablet or computer.