Category: Science
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PSLE Science Reality Lab Vol No.057 | “10.0 ± 0.5” — Does the ± Part Matter to the Claim?
PSLE-SCI-REALITY-0057. A Primary 5/6 Reality Lab guide to measurement uncertainty: why a result such as 10.0 ± 0.5 is more informative than pretending the central number is exact.
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PSLE Science Reality Lab Vol No.056 | “Observed Every Two Days” — Was the Land Being Watched Continuously?
PSLE-SCI-REALITY-0056. A Primary 5/6 Reality Lab guide to revisit frequency: repeated satellite or sensor snapshots are not the same as continuous observation, especially when changes can happen between measurements.
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PSLE Science Reality Lab Vol No.055 | “Representative Image” — How Was This One Picture Chosen From the Whole Experiment?
PSLE-SCI-REALITY-0055. A Primary 5/6 Reality Lab guide to “representative images”: how one selected scientific picture can illustrate evidence without automatically representing the whole dataset.
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PSLE Science Reality Lab Vol No.054 | “Calibrated Last Month” — Does That Guarantee Today’s Reading Is Still Right?
PSLE-SCI-REALITY-0054. A Primary 5/6 Reality Lab guide to calibration stickers, time, drift and why a past calibration does not automatically guarantee a measurement made today.
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PSLE Science Reality Lab Vol No.053 | “One Test Worked” — How Many Other Tests Were Tried?
A massive Primary 5/6 Reality Lab guide to selected winners after many tests: count the opportunities for a standout result, ask when the target was chosen, and demand repetition before generalising.
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PSLE Science Reality Lab Vol No.052 | “Randomized Test” — What Was Actually Random?
A massive Primary 5/6 Reality Lab guide to the word “randomized”: distinguish random assignment, random run order and random sampling before deciding what a test can actually prove.