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Accurate Measurement

PROCEDURAL
Science›Scientific Inquiry|Ages 9—11|ID: mt_Psun-u_lPf

Take measurements with increasing accuracy and precision using a range of scientific equipment, taking repeat readings when appropriate

Mastery Evidence

  • Use scientific equipment (scales, thermometers, measuring cylinders, stopwatches) with increasing precision
  • Explain why repeat readings improve reliability and take at least three readings
  • Identify and deal with anomalous results (measurements that don't fit the pattern)

Assessment Prompt

“Can [child] measure things precisely during experiments, know when to take repeat readings for reliability, and spot when a measurement seems wrong?”

Curriculum Standards1 alignment

KS2U.Sci.WS.2The national curriculum in England
Taking measurements

taking measurements, using a range of scientific equipment, with increasing accuracy and precision, taking repeat readings when appropriate

Science · Upper Key Stage 2

Prerequisites1

Show full prerequisite tree
  • Measuring accurately hard

    Must take measurements before increasing accuracy/precision with repeat readings

    • Measurable Attributes of Objects soft

      Systematic scientific measurement builds on understanding measurable attributes from maths

    • Observing with simple equipment hard

      Must observe closely before taking systematic measurements

      • Asking scientific questions hard

        Must ask questions before learning to observe closely

        • Asking Questions soft

          Formulating scientific questions builds on the general skill of asking relevant questions to extend understanding, developed in English speaking and listening

          • Question Words hard

            Generating effective questions requires knowledge of question words (who, what, where, when, why, how)

          • Listening and responding hard

            Listening and responding needed before asking questions

          • Exploring Ideas Through Talk soft

            Related speaking skill supports this topic

            • Feeling of not understanding soft

              Using talk to explore ideas and speculate requires noticing what you don't yet understand — the comprehension-monitoring habit in a spoken register

              • Asking for Help hard

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

        • Observation vs Interpretation soft

          Asking good scientific questions requires noticing the distinction between observation and interpretation — a question like 'why did this happen?' only makes sense once you've separated what you saw from what you inferred

          • 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

        • Feeling of not understanding soft

          Asking scientific questions is the science-domain expression of the universal comprehension-monitoring habit: noticing what you don't yet understand

          • Asking for Help hard

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

        • Persisting When It's Hard soft

          Scientific enquiry requires persistence through uncertainty — the universal persistence habit underpins willingness to keep investigating

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