Teaching article
A paper-use tally needs a unit everyone counts the same way
Count a defined classroom material stream before proposing a reduction.
Whole sheets, scraps and bundles produce different totals. Decide which item the fictional record counts before collecting data, then use comparable records if the class wants to discuss a change in use.
Define the counted item. Tally consistently. Compare alternatives.
Define the counted item first
Choose a unit that can be counted consistently. A reduction claim requires comparable records rather than an impression that the tray looks emptier.
Counting whole sheets differs from counting scraps.
A tally needs a consistent unit.
What exactly was counted? Use pre-counted bundles.
Resources
- Reflection Journal Template — Use the editable recording prompts for a short evidence-and-question record, alongside the checked topic source.
Further reading
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- A food-web diagram leaves most of the habitat out
- Build a habitat around an imaginary creature's stated needs
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