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Science Can Be Revised

META
Science›Scientific Inquiry|Ages 9—11|ID: mt_1GVAmcwAiO

Scientific knowledge is provisional — it is the best current explanation based on available evidence, and it can and should be revised when better evidence arrives

Mastery Evidence

  • Give an example of a scientific idea that changed when new evidence was found — e.g. people once thought the Sun orbited the Earth
  • Explain that scientists update their ideas when experiments give unexpected results, and that this is a strength not a weakness
  • Describe why it is important to keep testing ideas rather than just accepting them because an expert said so

Assessment Prompt

“Does [child] understand that scientific facts can be revised as new discoveries are made — and that this is science working properly, not a sign that scientists were wrong?”

Prerequisites3

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  • Could there be another explanation? soft

    Provisionality of scientific knowledge is grounded in the habit of always seeking alternative explanations — science revises because scientists keep asking 'is there another way to explain this?'

    • Changing Your Mind with Evidence hard

      Actively seeking alternative explanations requires first having the habit of not defending your original interpretation against the evidence

      • Observation vs Interpretation hard

        Being willing to revise a hypothesis requires first distinguishing observation from interpretation — you can only update your interpretation if you recognise it as separate from the data

        • Feeling of not understanding soft

          Noticing the observation/interpretation distinction requires monitoring your own thinking — the universal comprehension-monitoring habit applied to scientific reasoning

          • Asking for Help hard

            Noticing confusion and acting on it requires already knowing that asking for help is a valid response to being stuck

      • Learning from Mistakes soft

        Changing your mind when evidence contradicts your prediction is the science form of the universal error-analysis habit — treating surprises as information rather than failures

        • Checking Your Own Work soft

          Investigating why something was wrong grows from the earlier habit of checking whether an answer seems right

        • Trying a New Approach hard

          Error analysis requires the habit of trying different approaches — you need to have tried something before you can analyse what went wrong

          • Feeling of not understanding hard

            Strategy switching is triggered by noticing the current approach isn't working — requires comprehension monitoring

            • Asking for Help hard

              Noticing confusion and acting on it requires already knowing that asking for help is a valid response to being stuck

          • Planning a Task hard

            Switching strategy requires first having made a plan — you can only switch away from something you chose deliberately

            • Checking Your Own Work hard

              Planning before a task grows from the habit of checking back after finishing — both are self-regulatory bookends

    • Understanding Why soft

      Asking 'is there another explanation?' is the scientific form of the universal elaborative-interrogation habit

      • Teaching It Back hard

        Asking 'why does this work?' requires first being able to explain what you know — interrogation builds on explanation

  • Reflecting After Learning soft

    Understanding that scientific knowledge changes over time requires the universal learning-reflection habit applied at the scale of a whole discipline

    • Teaching It Back soft

      Articulating what helped in the learning process requires the self-explanation habit

    • Learning from Mistakes hard

      Reflecting on the learning process requires the ability to analyse errors — reflection without error analysis stays superficial

      • Checking Your Own Work soft

        Investigating why something was wrong grows from the earlier habit of checking whether an answer seems right

      • Trying a New Approach hard

        Error analysis requires the habit of trying different approaches — you need to have tried something before you can analyse what went wrong

        • Feeling of not understanding hard

          Strategy switching is triggered by noticing the current approach isn't working — requires comprehension monitoring

          • Asking for Help hard

            Noticing confusion and acting on it requires already knowing that asking for help is a valid response to being stuck

        • Planning a Task hard

          Switching strategy requires first having made a plan — you can only switch away from something you chose deliberately

          • Checking Your Own Work hard

            Planning before a task grows from the habit of checking back after finishing — both are self-regulatory bookends

  • Correlation vs Causation hard

    Understanding that scientific knowledge is provisional requires seeing concrete examples of how apparent patterns and causal claims get revised — the correlation/causation distinction is one key mechanism

    • Describing Rules & Patterns soft

      Evaluating whether a pattern is truly causal requires the universal generalisation habit — asking whether the rule you think you've spotted actually holds across cases

      • Spotting Patterns hard

        Generalising a rule requires first being able to spot the recurring pattern that the rule captures

        • Connecting New & Old Ideas soft

          Spotting patterns across domains is an extension of the habit of connecting new ideas to existing ones

          • Thinking Before Starting hard

            Making connections between new and old ideas requires the habit of activating prior knowledge first

            • Persisting When It's Hard hard

              Activating prior knowledge requires the foundational habit of persistent engagement with new material

    • Could there be another explanation? hard

      Recognising that correlation is not causation requires the habit of generating alternative explanations — the correlation/causation distinction is a specific case of asking 'is there another explanation?'

      • Changing Your Mind with Evidence hard

        Actively seeking alternative explanations requires first having the habit of not defending your original interpretation against the evidence

        • Observation vs Interpretation hard

          Being willing to revise a hypothesis requires first distinguishing observation from interpretation — you can only update your interpretation if you recognise it as separate from the data

          • Feeling of not understanding soft

            Noticing the observation/interpretation distinction requires monitoring your own thinking — the universal comprehension-monitoring habit applied to scientific reasoning

            • Asking for Help hard

              Noticing confusion and acting on it requires already knowing that asking for help is a valid response to being stuck

        • Learning from Mistakes soft

          Changing your mind when evidence contradicts your prediction is the science form of the universal error-analysis habit — treating surprises as information rather than failures

          • Checking Your Own Work soft

            Investigating why something was wrong grows from the earlier habit of checking whether an answer seems right

          • Trying a New Approach hard

            Error analysis requires the habit of trying different approaches — you need to have tried something before you can analyse what went wrong

            • Feeling of not understanding hard

              Strategy switching is triggered by noticing the current approach isn't working — requires comprehension monitoring

              • Asking for Help hard

                Noticing confusion and acting on it requires already knowing that asking for help is a valid response to being stuck

            • Planning a Task hard

              Switching strategy requires first having made a plan — you can only switch away from something you chose deliberately

              • Checking Your Own Work hard

                Planning before a task grows from the habit of checking back after finishing — both are self-regulatory bookends

      • Understanding Why soft

        Asking 'is there another explanation?' is the scientific form of the universal elaborative-interrogation habit

        • Teaching It Back hard

          Asking 'why does this work?' requires first being able to explain what you know — interrogation builds on explanation

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