Workshop & Stations
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Workshop / Logic Sandbox
Logic Sandbox Station
Design and simulate digital logic circuits with IEEE gate symbols, live input toggles, truth tables, and boolean tools — then reuse one circuit across many classroom versions.
AI can draft. You decide what the class sees.
What Logic Sandbox is
Logic Sandbox is a digital logic circuit Station. Place IEEE-style gates, wire a circuit, toggle inputs live, and read the behaviour through signal propagation, truth tables, and boolean expressions — including Quine–McCluskey minimisation when you need a simpler form.
That matters in computing and electronics foundations because Boolean ideas stay abstract until learners can flip an input and watch the output answer.
Why teachers use Logic Sandbox
Gate introductions
AND, OR, NOT, NAND, NOR, XOR, XNOR, and buffers with clear IEEE symbols.
Adders and building blocks
Half adder and full adder demos that connect theory to a working circuit.
MUX and NAND universality
Catalogue circuits that carry classic teaching punchlines.
Verification
Auto truth tables and expressions so claims about behaviour can be checked in the room.
On TeachForge, Logic Sandbox is a Workshop Station — built to move from circuit to live teaching without leaving the platform.
Inside the Logic Sandbox Station
Like the rest of the Workshop, you build on one side and watch behaviour update on the other.
- Visual circuit canvas with clickable inputs for live 0/1 toggling
- JSON circuit editor when you want full structural control
- Truth table panel with sensible limits for large input counts
- Boolean expression and minimise tools on the toolbar
- Floating-input warnings so incomplete circuits are easier to spot
- Logic templates and parametric catalogue packages, plus export and Whiteboard send
How a circuit becomes a simulation
Load a template or edit gates and wires
Start from a teaching circuit or build your own.
Toggle inputs on the canvas
Signals propagate; truth table and expression update with the behaviour.
Export, save, or send it live
Take it to the board, into a question, or out as a file you own.
One circuit. Every version of it.
Logic Sandbox supports parametric catalogue packages for core teaching circuits, plus saved circuit JSON — so an adder or MUX can reopen with the same structure ready for a new demonstration.
Change it while you teach
Flip inputs, rewire a gate, or reopen a starter mid-explanation.
Keep the structure, vary the question
The same circuit can host “predict the output” then “complete the truth table”.
Make Boolean visible
Connect abstract logic to something learners can trace gate by gate.
Stay close to assessment
Save the circuit package and reuse it inside questions and labs.
Prefer building every gate by hand? The canvas stays empty until you fill it. Catalogue starters are there when you want speed without losing the simulation.
Ready-made circuits to start from
Open a catalogue package or template, then adapt it:
| Area | What you can open |
|---|---|
| Foundations | AND gate; NAND universality |
| Arithmetic | Half adder; Full adder |
| Selection | 2-to-1 multiplexer |
AI help, your way
Need a first draft? Use AI as an assistant — then review, edit, and approve before anything reaches learners.
Copy the prompt
Generate a ready-made prompt and paste it into the chat tool you already use.
Use your own GPU
Connect a local model endpoint in your settings and run generation on hardware you control.
Use your own API key
Add your provider key in settings, choose the model, and generate with your own account.
AI can be wrong. That is exactly why a teacher stays in the loop.
Take the circuit where teaching happens
- Whiteboard — put it on the live board and adjust it in front of the class
- Quest Ladder — drop it into questions and explanations
- Virtual Lab — reuse it inside interactive lab work
- Community — share what you built, and build on what other educators shared