Category: Science
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PSLE Science Reality Lab Vol No.009 | “Every Trial Worked” — Were the Failed Trials Left Out?
A PSLE Science Reality Lab guide for Primary 5 and 6 learners on evaluating impressive success claims by asking how many trials were attempted, what counted as success and whether the complete record is visible.
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PSLE Science Reality Lab Vol No.008 | “Three Websites Say the Same Thing” — Is That Three Pieces of Evidence?
A PSLE Science Reality Lab guide for Primary 5 and 6 learners on tracing repeated claims back to their evidence source and distinguishing repeated reporting from independent scientific evidence.
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PSLE Science Reality Lab Vol No.007 | “Look How Much It Improved” — What Happens If the Time Window Changes?
A PSLE Science Reality Lab guide for Primary 5 and 6 learners on checking whether a dramatic improvement depends on a carefully chosen start date, end date or slice of the data.
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PSLE Science Reality Lab Vol No.006 | “It Happened on Camera” — Does a Demonstration Test Why It Happened?
A PSLE Science Reality Lab guide for Primary 5 and 6 learners on separating what a dramatic demonstration visibly shows from what it can actually prove about cause, mechanism and explanation.
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PSLE Science Reality Lab Vol No.005 | “95% Agree” — Who Was Actually Asked?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on evaluating percentage claims by finding the denominator, sample size, selection method, measured outcome and how far the result can reasonably be generalised.
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PSLE Science Reality Lab Vol No.004 | “X Causes Y” — What Evidence Would a Causal Headline Need?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on distinguishing a pattern from a causal claim and asking what comparison, time order, alternative explanations and test evidence would be needed.