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Freyja Labs

Professional Development for Fairfax County PS

Customized. Hands-on. Built for your teachers and your students.

Falls Church, VA · 183,000 students

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What we've been reading

From outside, what we notice

Fairfax County is the 9th-largest district in the U.S., with the TJ STEM magnet setting a national bar for what advanced K-12 STEM looks like. The 2024 CS Standards of Learning expand CS integration across every grade band — a shift from CS as a standalone subject to CS as a way of thinking woven through the curriculum. For Fairfax teachers, that means developing new pedagogical habits, not new content. We co-design with Fairfax teachers — custom-built for the rigor a community of researchers, engineers, and policymakers will actually respect.

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Next ↓ 02 · Sample lessons

Sample lessons — artifacts, not deliverables

We don't deliver lesson plans.

We deliver change for your teachers. The lessons below are the receipts.

These two examples were built for Fairfax County PS — but what we'll actually do together depends on what you tell us about where you are and where you want to go. We custom-build with your teachers around what your students, your community, and your district leadership are actually navigating: AI integration, CS/STEM integration, VA policy, the local context only your educators can read. The artifacts you'll see below are one shape that capability can take.

Tech lesson / with devices
micro:bit + AI · The limits of AI in research-grade work

Beyond the Algorithm: What AI Cannot Tell You

8–10 · Science / Math · 90 minutes

Kit: micro:bit + sample lesson plan — "Beyond the Algorithm: What AI Cannot Tell You About Your Data" (grades 8-10, science/math). Students collect environmental data with micro:bit sensors, use AI for pattern analysis, then identify what the AI missed that human observation caught. Embedded AI literacy: the limits of AI — when human judgment is the better tool. Designed for a district that sets the national bar for rigor.

What's new — what wouldn't have happened before this PD

Without the PD, AI pattern analysis is the analysis. After: students collect data, run AI, and identify what the AI missed that human observation caught — the rigor a community of researchers, engineers, and policymakers will actually respect.

Show full lesson plan objectives · procedure · materials · assessment · teacher pack

Content Objectives

  • Maintain parallel quantitative and qualitative records
  • Compare AI analysis with field-level observations
  • Identify the analytical limits of pattern matching

AI Literacy Objectives

  • Identify what cannot be measured and therefore cannot be in AI input
  • Apply the verification protocol at research-grade rigor
  • Articulate when human judgment is the better analytical tool

What Students Do

Phase 1 · 25 min Collect

Teams of 3+ collect environmental data on campus and maintain a parallel observation logbook (qualitative notes that quantitative data does not capture).

Facilitation focus

Don't standardize sensor placement across teams. Different microclimates make Phase 2 richer. Move between teams every 5 minutes; check that students are recording observations *and* numerical readings. The qualitative notes are the wedge they'll use to challenge AI in Phase 3.

Watch for

Teams logging only numbers. Push them to write at least one observation per reading ("breeze picked up", "cloud passed over"). If the campus has visibly varied environments — shade vs. sun, paved vs. planted — push teams to spread out.

Phase 2 · 30 min Analyze

Teams run AI analysis on the numeric data only. Document AI findings, then compare against the parallel observation logbook.

Facilitation focus

Frame the AI tool as a teammate, not an authority. When the AI prediction is wrong, students often default to "we'll fix our data." Interrupt that — the goal is to surface where AI and ground-truth diverge, not to reconcile.

Watch for

Teams that find zero divergence. Either they're smoothing data unconsciously, or the AI is generic enough to match anything. Have them pick a single 5-minute window and compare in extreme detail.

Phase 3 · 35 min Evaluate

Apply the verification protocol. Each team identifies what the AI missed that human observation caught — the limits of pattern matching when context cannot be measured.

Facilitation focus

The class trust guidelines are the deliverable. Push for specificity: not "AI is bad at humidity" but "AI underestimates humidity in conditions like ours when [specific local condition]." Local knowledge + data = the trust criteria.

Watch for

Generic statements ("AI is sometimes wrong"). Reject these gently — every guideline must reference a specific divergence the team observed.

A four-step verification protocol your teachers will build with us

A practice students learn once and apply to any AI output, in any subject, for the rest of their lives.

1. Check the source

Where did the AI get its data? Is it the same data we used or generated?

2. Check the reasoning

How did the AI reach its conclusion? Can we follow the logic?

3. Check against reality

Does the output match what we observed with our own senses, instruments, or knowledge?

4. Check yourself

What might we have missed? What would we want a second opinion on?

More on the thinking behind this — the framework we built it from.

Materials

  • micro:bit with environmental sensors (included in kit)
  • USB cables and student devices
  • AI analysis tool access
  • Observation logbook (separate from numeric data sheet)
  • Chart paper and markers

Assessment

Each team produces a one-page artifact: their findings, the AI output they evaluated, and a written verdict on when this kind of AI work is worth trusting.

Final report names at least three observations the AI missed and pairs each with the analytical implication.

Teacher pack — everything you need to teach this

For the Facilitator

Prior Knowledge Required
  • Read and create simple data tables and bar/line graphs
  • Distinguish between an observation (what we measured) and an inference (what we conclude)
  • Familiarity with one-step variable assignment in block-based or text-based code
Exit Ticket

"Describe one moment today when your direct measurement told you something the AI missed. What did you measure, and what should the AI have done differently?"

Look for
  • Specific reference to a measurement (number + unit + location)
  • Specific reference to what the AI output said
  • A concrete claim about what the AI should have changed (input, comparison, caveat)
Anticipated Misconceptions

"If the AI says it, it must be right — it has access to all the data."

Show the AI a deliberately wrong dataset and have students predict the (wrong) output. Reinforce: AI confidence ≠ AI correctness. The AI processes whatever input it receives, including noise and bias.

"Our sensor data is wrong because it doesn't match the AI."

Have students re-measure with a second device or different location. Direct measurement is the ground truth — divergence with AI is a signal worth investigating, not an error to "fix."

"The AI is broken if it gives a different answer to the same question twice."

This is a feature, not a bug. Use it to discuss probabilistic vs. deterministic systems. Two valid outputs can describe the same data — students should learn to ask "what stayed the same?"

Differentiation
Slide Cues — 6 slides
Standards Alignment — 9 frameworks
Family / Guardian Letter — copy & paste, edit to fit

Dear families, This week your student is learning a skill that will matter for the rest of their lives: how to decide when to trust an AI system. In this lesson, students used real sensors to measure conditions around our school and compared what they measured with what an AI predicted. The point is not that AI is bad — the point is that AI works best when paired with someone who knows the real situation. Your student is learning to be that someone. We call the protocol the verification protocol. It has four steps: check the source the AI used, check the reasoning, check the result against reality, and check yourself for what you might have missed. You can use this with your student at home — every time an AI assistant gives you an answer, ask: "How would we check this?" Questions? hello@freyjalabs.com — Freyja Labs (working with Fairfax County PS)

Unplugged lesson / no screens
No screens · Peer review for AI claims

Peer Review for Machines: Applying Academic Standards to AI Claims

8–10 · Science / ELA · 60 minutes

Peer Review for Machines: Applying Academic Standards to AI Claims — Teams receive printed AI-generated science summaries and apply a peer-review rubric. They identify unsupported claims, missing evidence, and logical gaps — the same skills they use in their own academic work. Designed for FCPS's culture of intellectual rigor.

What's new — what wouldn't have happened before this PD

Without the PD, evaluating AI claims is a class discussion. After: students apply a peer-review rubric to AI-generated science summaries and identify unsupported claims, missing evidence, and logical gaps — the same skills they use in their own academic work.

Show full lesson plan objectives · procedure · materials · assessment · teacher pack

Content Objectives

  • Apply academic peer-review standards to a written claim
  • Identify unsupported claims, missing evidence, and logical gaps
  • Construct a structured reviewer report

AI Literacy Objectives

  • Apply academic standards of evidence to AI-generated text
  • Distinguish between confident phrasing and well-supported claim
  • Articulate failure patterns common to AI-generated science writing

What Students Do — No Screens, No Devices

Phase 1 · 15 min Examine

Teams of 3+ receive printed AI-generated science summaries on a topic the team can engage. Skim and note initial impressions.

Facilitation focus

Print the artifact packets in color so detail is preserved. Don't tell students which AI claims are "right" — let them notice divergence on their own. Their lived knowledge of the topic IS the comparison standard. Treat it that way explicitly.

Watch for

Teams that pick a "winning" artifact immediately. Slow them down — every artifact reflects the AI's best guess given its inputs. The question is not which is right but how anyone could have known in advance.

Phase 2 · 20 min Apply

Teams apply a peer-review rubric: claims supported by evidence, sources cited, methodology coherent, conclusions warranted. Mark up the document.

Facilitation focus

Distinguish three error types: factual (X is asserted but isn't true), framing (the description emphasizes one thing while ignoring others), absence (something important is left out entirely). Most AI artifacts fail in framing and absence, not facts.

Watch for

Teams that only catch factual errors. Push deeper — what story is the AI telling? Whose perspective is implicit? What did it not have access to?

Phase 3 · 25 min Argue

Each team produces a written reviewer report. Class compiles common failure patterns — the same patterns the rubric catches in student work.

Facilitation focus

Frame the argument as advice to a real decision-maker who will act on it. Students must commit to a recommendation AND name specifically what would change their mind.

Watch for

Hedging ("we can't really know"). True — but the decision still has to be made. Push students to commit to a recommendation AND explain what new information would flip it.

Materials

  • Printed AI-generated science summaries (PDF at landing page)
  • Peer-review rubric (modeled on academic standards)
  • Annotation worksheet
  • Chart paper and markers

Assessment

Each team produces a one-page artifact: their findings, the AI output they evaluated, and a written verdict on when this kind of AI work is worth trusting.

Reviewer report names at least one unsupported claim, one missing source, and one logical gap, with the rubric criterion cited for each.

Teacher pack — everything you need to teach this

For the Facilitator

Prior Knowledge Required
  • Read and discuss informational text in small groups
  • Cite evidence to support a claim — written or verbal
  • Familiarity with the difference between a prediction and a confirmed result
Exit Ticket

"An AI tool gives someone you care about a recommendation. What three things should they check before they accept it?"

Look for
  • At least one item references the source or input data the AI used
  • At least one item references the AI's reasoning or comparison with known facts
  • At least one item references checking with a person, lived experience, or independent source
Anticipated Misconceptions

"AI is just like a calculator — if you give it the right numbers, you get the right answer."

Use a worked example where two students give the same prompt and get different outputs. AI is more like a human reader making a judgment call than a calculator computing a formula.

"If we can't see the math, we just have to trust it."

Pivot the protocol — "Check the reasoning" — to focus on what we CAN check: source, comparison to known facts, internal consistency. You don't need the math to evaluate a claim.

"AI hallucinations only happen with chatbots."

Show a printed AI example that contains a confident but factually wrong statement. Hallucinations are a property of how generative models work, not a chatbot quirk.

Differentiation
Slide Cues — 6 slides
Standards Alignment — 6 frameworks
Family / Guardian Letter — copy & paste, edit to fit

Dear families, This week your student practiced something most adults haven't been formally taught: how to evaluate an AI-generated claim before accepting it. In this lesson, students worked from printed artifacts — no screens — and applied a four-part verification protocol: check the source, check the reasoning, check the result against reality, and check yourself. They learned that the right answer to "should I trust this AI?" is almost always "let me check first." At home, you can use the same protocol. The next time an AI assistant gives your family information, ask your student: "What would we need to check before we acted on this?" Questions? hello@freyjalabs.com — Freyja Labs (working with Fairfax County PS)

Worth saying again: the lessons above are receipts, not the goal. The point of the engagement is change for your teachers — their confidence to design the next ten lessons themselves, for whatever Fairfax County PS faces next. We don't deliver lesson plans. We deliver capability.

More on how we think about this work

Next ↓ 03 · How we'd work together

Engagement Options

How We Can Work Together

We don't sell a packaged curriculum — every engagement is shaped around what your district tells us it needs. The options below are starting shapes; the actual work gets co-designed with your team. Click any that look promising and tell us what you're thinking.

Click any option below to mark it as interesting — then use the form to send a quick note.

Next ↓ 04 · Reach out

We do not provide generic materials. We provide the empowerment and support for teachers to build lessons like these — tailored to their students, grounded in their community's experience.

Mike Borowczak, Ph.D.

Andrea C. Burrows Borowczak, Ed.D.

Where growth begins.

hello@freyjalabs.com