A free graphing calculator plus teacher-built activities where students drag points, adjust sliders and see graphs change as they work.
Creative Transform
Pairs build a Desmos rectangle whose sliders set its sides and whose rules report area and perimeter, write three challenges for Grade 3, watch them try it, and rebuild whatever tripped them up.
Students build a Desmos graph with sliders that lets a classmate discover the rules for y = f(x) + a and y = f(x + a) without being told them.
Interactive Amplify
Pupils sort fraction cards, shown as digits and as fraction bars, into three equivalence groups in a Desmos card sort while the teacher watches every sort on the dashboard.
Every student drags ten mixed values onto their own Desmos number line, and the teacher uses the live view of all thirty lines to pair up disagreements and choose what the class discusses.
Students plot a shape's vertices in all four quadrants in a Desmos activity, and the teacher uses the dashboard overlay to spot and fix quadrant errors as they happen.
Students solve quadratics by factorising, check each pair of roots against the graph in Desmos, and fix their own errors before moving on.
Each student sketches how heart rate will change across a described interval session on a Desmos sketch screen, and the teacher overlays the class's sketches anonymously to pick out misconceptions before a short practical.
Interactive Replace
Students drag twelve graph cards onto twelve equation cards in a Desmos Classroom card sort, with three deliberate near-misses such as y = 2x + 1 against y = 2x - 1.
This page is one of a growing set of PICRAT examples by cell, subject and grade. Page maintained by Andy Perryer.