Sandbox
Free play with virtual manipulatives; no wrong answers.
28 tools
Story Stage
Drag characters and backdrops onto a stage to retell a classic folktale; the teacher asks who, where and...
Grades K-2 · English Learners · SandboxRetell Puppets
Puppets act out a short story; learners retell it with sentence frames and picture support.
Grades 9-12 · Library and Research · SandboxBoolean Builder
Build searches with AND, OR, NOT and quotes; a Venn diagram shows how each choice changes results.
Grades K-2 · Arts · SandboxSound Elevator
Play notes on an elevator: up for high, down for low; a volume dial makes the elevator glow loud or soft.
Grades 6-8 · Arts · SandboxChord Explorer
Build triads and chord progressions on a keyboard; hear why some progressions feel like home.
Grades 6-8 · Health and PE · SandboxStress Toolkit
Try coping strategies (breathing, grounding, journaling) and track which help; links to support resources.
Grade 2 · Computer Science · SandboxInput-Output Machine
Press keys, click and speak; watch the computer turn input into output on screen and speaker.
Grades 9-12 · Computer Science · SandboxAPI Playground
Call mock APIs and build a small app by combining modules and functions.
Grades K-12 · World Languages and ASL · SandboxCalendario Vivo
An interactive calendar in Spanish; click days, weather and colors to hear and practice.
Grades K-2 · Social and Emotional · SandboxCalm Corner
Animated calm-down tools: breathing balloons, counting and stretching, led by the teacher.
Kindergarten · Math · SandboxSnack Scale
A seesaw takes piles of cartoon snacks; whichever side has more tips down, and kids predict which way...
Kindergarten · Math · SandboxTen Frame Factory
Fill a ten frame, then spill the extras onto a second; the number name and "ten and some more" build as you go.
Kindergarten · Math · SandboxPattern Block Pond
Snap pattern blocks together to fill a lily pad outline; the tool celebrates when two triangles make a rhombus.
Grade 1 · Math · SandboxClock Shop
Drag the hands of a big friendly clock and watch the digital clock and the day's sky change with them.
Grade 2 · Math · SandboxJump Line
An open number line where you make your own jumps; compare different students' paths to the same answer.
Grade 3 · Math · SandboxEqual Groups Zoo
Feed zoo animals equal groups; the tool shows the same picture as an array, a skip-count and an equation.
Grade 4 · Math · SandboxArea Model Builder
Split big multiplications into rectangles you can actually compute, then put them back together.
Grade 6 · Math · SandboxHow Many Fit?
Drag fraction bars into a container to see how many 3/4s fit in 2 1/2. Division as measuring.
Grade 6 · Math · SandboxNet Folder
Unfold boxes and pyramids into nets, find the area of each face, then fold them back up.
Grade 9 · Math · SandboxAlgebra Tile Studio
Factor and complete the square with algebra tiles; watch the rectangle and the expression change together.
Grade 10 · Math · SandboxCoordinate Proof Lab
Place shapes on the grid and prove they're parallelograms or rectangles with slopes and distances.
Grade 12 · Math · SandboxSlope Field Garden
Plant seeds in a slope field and watch solution curves grow; model population and cooling.
Grade 6 · Science · SandboxPlanet Builder
Place planets and moons and set their speed; gravity decides whether you get stable orbits or chaos.
Grade 7 · Science · SandboxMolecule Builder
Snap atoms into molecules (water, oxygen, methane) and see why some combinations are stable.
Grade 8 · Science · SandboxWave Tank
Make waves in a tank, string and light; change amplitude and frequency and see what they do.
Grade 11 · Science · SandboxField Lines
Place masses and charges and see gravitational and electric fields; compare the inverse square laws.
Grade 11 · Science · SandboxCircuit Builder
Build circuits with batteries, resistors and bulbs; measure current and voltage and make a generator spin.
Grade 1 · Social Studies · SandboxCommunity Helpers Village
Place community helpers in a town and see what happens when one is missing (no mail carrier, no firefighter).