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Technical Trades

Apprentices practise the reasoning, not just the answer.

Diagnosis is a sequence of decisions. Instructors see which decision an apprentice keeps getting wrong.

Series Circuit — 12V 12V R1 R2 R3 R_total = R1 + R2 + R3 = 3R → I (current)

Rendered by the product, not a screenshot

One task, start to finish

This is what a learner does here.

Not a tour of a dashboard. One piece of practice from this program, played through — the same interaction an enrolled student gets.

Technical Trades
Finding the open switch in a simplified training circuit.

Working today

What this program gets on day one.

Every capability below is running in a real signed-in session and gated before it ships. Not a roadmap.

  • Answers cited back to your own material, with the instructor one tap away when the material does not cover it

    On our go/no-go benchmark every answer retrieved the right passage, carried a valid citation and stayed inside the material, and every out-of-scope question routed the learner to the instructor rather than a guess — against 54.2% for handing the model the whole document.

  • Interactive STEM visuals — graphs, geometry, circuits, reactions — that the learner can manipulate

    54 STEM diagrams and 27 interactive ones ship today, and every one is re-drawn and checked before a release.

  • Instructors attach their own documents to a course, review them as a draft, and publish when ready

    Fourteen checks driven through a real browser, including that a student cannot see a draft and that publishing opens the document itself.

  • See which learners are struggling and which concepts they are stuck on

    Twenty-nine automated checks on the cohort report, plus five more driven through a real browser.

  • Competency is scored by rules against an approved rubric, not by a language model’s opinion

    Forty-one automated checks, including a deliberate break to prove the checks can fail. The model records what it observed; the rubric decides the mark.

A glimpse of what Ava draws, live

Concepts they can take apart.

Every figure here is rendered by the same code path that runs for a real student. Not screenshots. Not stock illustrations. Drag one, and it moves.

The Human Heart Right Atrium Left Atrium Right Ventricle Left Ventricle Superior Vena Cava Pulmonary Artery Inferior Vena Cava Pulmonary Veins Aorta → Deoxygenated → Oxygenated
Heart DiagramBiology
DNA Structure A T T A G C C G A T G C T A A - Adenine T - Thymine G - Guanine C - Cytosine Sugar-phosphate backbone Hydrogen bonds (- - -)
DNA StructureBiology
Series Circuit — 12V 12V R1 R2 R3 R_total = R1 + R2 + R3 = 3R → I (current)
Circuit DiagramPhysics
The pH Scale ← ACIDIC NEUTRAL BASIC → More H⁺ ions ← → More OH⁻ ions 0 Battery acid 1 Stomach acid 2 Lemon juice 3 Vinegar 4 Tomato 5 Coffee 6 Milk 7 Pure water 8 Seawater 9 Baking soda 10 Milk of mag. 11 Ammonia 12 Soapy water 13 Bleach 14 Drain cleaner
pH ScaleChemistry
Photosynthesis Chloroplast (chlorophyll) ☀️ Light Energy CO₂ H₂O C₆H₁₂O₆ Glucose O₂ 6CO₂ + 6H₂O + Light → C₆H₁₂O₆ + 6O₂
PhotosynthesisBiology
Projectile Motion (45°, 15 m/s) Max Height 5.74m Range 22.96m
Projectile MotionPhysics
Object Fg FN Free Body Diagram
Free Body DiagramPhysics
Normal Distribution -3 -3σ -2 -2σ -1 -1σ 0 μ 1 +1σ 2 +2σ 3 +3σ 34.1% 34.1% 13.6% 13.6% 2.1% 2.1%
Normal DistributionMath

Who this is for

Programs already running this material.

ElectricalHVAC/RFacilities maintenanceApprenticeship programs

Zelvi for institutions

Start with one difficult course.

One gateway course, one term, and a recovery number your own faculty can check.