Lesson plan
Retipping
Retipping refers to the repair and application of iridium tipping material to fountain pen nibs. Iridium is one of the five platinum group metals. When platinum is mined, it is usually found with one or more of its five sister metals, called the platinum group metals: palladium, osmium, rhodium, ruthenium, and iridium. John Holland tipped fountain pens with iridium in 1880.
Article summary
Retipping refers to the repair and application of iridium tipping material to fountain pen nibs. Iridium is one of the five platinum group metals. When platinum is mined, it is usually found with one or more of its five sister metals, called the platinum group metals: palladium, osmium, rhodium, ruthenium, and iridium. John Holland tipped fountain pens with iridium in 1880.
Key claims
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.