Two.Sigma

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Run #772

done rubric v1 session 79141341 gemini-3.7-flash 2026-09-21 02:21
Session in Sessions →

The recording

What the student sent the question as it arrived, then each reading of it

Typed by the student

What is science

The audit's reading of the question, which is what the Product AI judged against:

What is science

Audit's summary: The student asked "What is science?" The tutor explained that science involves studying both the physical and natural world. The tutor further elaborated that the natural world includes Life Sciences, which encompass living organisms like plants, animals, and ecology. The tutor also mentioned Social Science, which deals with human behavior and society. The tutor used a combination of Hindi and English in the explanation and wrote key terms on the board.

Transcript 612 characters · 50 stripped

Read it no speaker labels — tutor and student run together

Hello, Ratne. Good morning. Aawa jaa rie, mehli. So, your doubt is, what is science? See, science में, अगर हम आपको last term में बताई कि science का मतलब क्या होता है, तो science में हम लोग सब चीज़ को combine करके बोलता है. मतलब combine करके, मतलब यहाँ पे आप physical और natural world दोनों पढ़ते हो. Physical world means... आप नेचुरल वर्ल्ड में क्या पढ़ते हो? यहाँ पे आप लाइट साइंसिस्ट पढ़ते हो. लाइट साइंसिस्ट का क्या मतलब हुआ? Life Sciences means that you will study about living organisms here. Living organisms like plants, animals, ecology. Social Science is used in the field of Human Behavior and Society.

What the student sent the question as it arrived, then each reading of it

Typed by the student

What is science

The audit's reading of the question, which is what the Product AI judged against:

What is science

Audit's summary: The student asked "What is science?" The tutor explained that science involves studying both the physical and natural world. The tutor further elaborated that the natural world includes Life Sciences, which encompass living organisms like plants, animals, and ecology. The tutor also mentioned Social Science, which deals with human behavior and society. The tutor used a combination of Hindi and English in the explanation and wrote key terms on the board.

Transcript 612 characters · 50 stripped

Read it no speaker labels — tutor and student run together

Hello, Ratne. Good morning. Aawa jaa rie, mehli. So, your doubt is, what is science? See, science में, अगर हम आपको last term में बताई कि science का मतलब क्या होता है, तो science में हम लोग सब चीज़ को combine करके बोलता है. मतलब combine करके, मतलब यहाँ पे आप physical और natural world दोनों पढ़ते हो. Physical world means... आप नेचुरल वर्ल्ड में क्या पढ़ते हो? यहाँ पे आप लाइट साइंसिस्ट पढ़ते हो. लाइट साइंसिस्ट का क्या मतलब हुआ? Life Sciences means that you will study about living organisms here. Living organisms like plants, animals, ecology. Social Science is used in the field of Human Behavior and Society.

Review team

no_issue

Product AI

nothing found

teaching Yes · mistakes No · satisfactory Yes

Each verdict takes your own. Yours is stored against the stack's, so “where is it wrong most often” is a question with an answer.

  1. Work is the right way up The canvas is upright at 0 degrees.
    Text in Frames 1 through 8 is oriented normally at 0 degrees.
    seen · 100% confident
  2. Your view
  3. Writing is legible at video size Handwriting is clear, well-spaced, and easy to read.
    Handwritten notes like 'physical and', 'non-living', 'Physics chemistry', and 'Living things' across Frames 3 to 8 are clearly legible against the dark background.
    seen · 95% confident
  4. Your view
  5. The work fills the frame Not applicable to a board session
    seen
  6. Nothing distracting in shot Not applicable to a board session
    seen
  7. The student's problem is established The question is clearly displayed on the canvas.
    'What is science' is shown in a text box in Frames 1, 2, 3, and 4.
    seen · 100% confident
  8. Your view
  9. Work proceeds in followable steps The working accumulates in a logical branching structure.
    The tutor breaks down science into physical (non-living: physics, chemistry in Frames 4-6) and natural/life sciences (living things: plants, animals, ecology in Frames 7-8).
    seen · 90% confident
  10. Your view
  11. It reaches an answer The explanation of the definition and branches of science is completed.
    By Frame 8 and the end of the transcript, key divisions (physical, living, social sciences) have been outlined.
    seen · 85% confident
  12. Your view
  13. Something was actually written board went from 1.73% to a peak of 5.88% covered (+4.15 points), ending at 2.71%
    Very little appeared on the board.
    measured
  14. Your view
  15. The concept is named before the working The concept is explicitly named at the beginning.
    The tutor states: 'So, your doubt is, what is science? See, science में, अगर हम आपको last term में बताई कि science का मतलब क्या होता है, तो science में हम लोग सब चीज़ को combine करके बोलता है.'
    heard · 95% confident
  16. Your view
  17. Explained rather than jumped to the answer The tutor begins by introducing the core definition before breaking it down.
    In the opening of the transcript and Frames 1-4, the tutor introduces science as combining the physical and natural worlds before writing sub-categories.
    heard · 90% confident
  18. Your view
  19. Solved step by step, not in one leap The explanation progresses step by step through the branches of science.
    Frames 3 through 8 show progressive categorization from physical/natural to living/non-living and specific disciplines.
    heard · 90% confident
  20. Your view
  21. The session opens properly The tutor greets the student and confirms the topic.
    Transcript starts with: 'Hello, Ratne. Good morning. Aawa jaa rie, mehli. So, your doubt is, what is science?'.
    heard · 100% confident
  22. Your view
  23. No long dead air 0 gaps over 6.0s, 0s total (0% of the session), longest 0s
    Silence is below -35.0dB — a crude measure on a phone microphone, so treat a low count as weak evidence rather than proof the tutor was talking.
    measured
  24. Your view
Observations judged, but not counted as the lab objecting
  1. The camera holds still Not applicable to a board session
    Not counted: Measured over 183 known-bad and 29 known-good camera sessions (2026-09-21): raised on 87% of the bad and 86% of the good, and the motion distributions are the same shape — median frame difference 25 on the bad set, 27 on the good. No threshold on this number separates them, so it is reported and not counted.
    measured
  2. Exposure is usable Not applicable to a board session
    Not counted: Same two sets: it raised 6 of 183 known-bad and 2 of 29 known-good sessions. Both too few to mean anything, and the brightness distributions overlap almost exactly. The earlier reading that it 'fires more on clean sessions' was two sessions out of twenty-nine — noise, not an inverted rule.
    measured
  3. Understanding of the concept is checked The tutor asks rhetorical questions but answers them directly without checking student understanding.
    The tutor asks 'आप नेचुरल वर्ल्ड में क्या पढ़ते हो?' and 'Life Sciences का क्या मतलब हुआ?' but immediately answers them in the next sentence without waiting for or receiving student input.
    Not counted: Raised on 87% of known-bad and 80% of known-good sessions. The criterion is honest about why in its own `why`: the transcript has no speaker labels, so a real check and a rhetorical 'ok?' are often indistinguishable, and the bar ends up one almost no session clears. Still judged and shown, because reading it beside a recording is how it gets better.
    heard
  4. Your view

Measured

Duration112s (1.9 min)
Video1280×800 @ 10.0fps
Audio trackyes
Shot changes
Dead air0 gaps ≥6.0s · 0s total · longest 0.0s
Lumaavg 43.7 · min · max
Mediumboard 96.4% flat background
Content written1.73% → 2.71% (+4.15)
Transcript 612 characters of speech
Frames8

What the model returned verbatim

{
  "findings": [
    {
      "key": "orientation",
      "verdict": "ok",
      "headline": "The canvas is upright at 0 degrees.",
      "evidence": "Text in Frames 1 through 8 is oriented normally at 0 degrees.",
      "confidence": 1.0
    },
    {
      "key": "legibility",
      "verdict": "ok",
      "headline": "Handwriting is clear, well-spaced, and easy to read.",
      "evidence": "Handwritten notes like 'physical and', 'non-living', 'Physics chemistry', and 'Living things' across Frames 3 to 8 are clearly legible against the dark background.",
      "confidence": 0.95
    },
    {
      "key": "question_captured",
      "verdict": "ok",
      "headline": "The question is clearly displayed on the canvas.",
      "evidence": "'What is science' is shown in a text box in Frames 1, 2, 3, and 4.",
      "confidence": 1.0
    },
    {
      "key": "structure",
      "verdict": "ok",
      "headline": "The working accumulates in a logical branching structure.",
      "evidence": "The tutor breaks down science into physical (non-living: physics, chemistry in Frames 4-6) and natural/life sciences (living things: plants, animals, ecology in Frames 7-8).",
      "confidence": 0.9
    },
    {
      "key": "completion",
      "verdict": "ok",
      "headline": "The explanation of the definition and branches of science is completed.",
      "evidence": "By Frame 8 and the end of the transcript, key divisions (physical, living, social sciences) have been outlined.",
      "confidence": 0.85
    },
    {
      "key": "concept_named",
      "verdict": "ok",
      "headline": "The concept is explicitly named at the beginning.",
      "evidence": "The tutor states: 'So, your doubt is, what is science? See, science में, अगर हम आपको last term में बताई कि science का मतलब क्या होता है, तो science में हम लोग सब चीज़ को combine करके बोलता है.'",
      "confidence": 0.95
    },
    {
      "key": "explained_before_solving",
      "verdict": "ok",
      "headline": "The tutor begins by introducing the core definition before breaking it down.",
      "evidence": "In the opening of the transcript and Frames 1-4, the tutor introduces science as combining the physical and natural worlds before writing sub-categories.",
      "confidence": 0.9
    },
    {
      "key": "concept_checked",
      "verdict": "weak",
      "headline": "The tutor asks rhetorical questions but answers them directly without checking student understanding.",
      "evidence": "The tutor asks 'आप नेचुरल वर्ल्ड में क्या पढ़ते हो?' and 'Life Sciences का क्या मतलब हुआ?' but immediately answers them in the next sentence without waiting for or receiving student input.",
      "confidence": 0.85
    },
    {
      "key": "step_by_step",
      "verdict": "ok",
      "headline": "The explanation progresses step by step through the branches of science.",
      "evidence": "Frames 3 through 8 show progressive categorization from physical/natural to living/non-living and specific disciplines.",
      "confidence": 0.9
    },
    {
      "key": "opening",
      "verdict": "ok",
      "headline": "The tutor greets the student and confirms the topic.",
      "evidence": "Transcript starts with: 'Hello, Ratne. Good morning. Aawa jaa rie, mehli. So, your doubt is, what is science?'.",
      "confidence": 1.0
    }
  ]
}

Frames in order, one every ~14s

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