TangenzialMente

Curiosità, attività ed enigmi — un filo che unisce tutte le età

Categoria: English

  • From Bananas to the Number Line: Why Does Minus Times Minus Give Plus?

    From Bananas to the Number Line: Why Does Minus Times Minus Give Plus?

    Discover why “minus times minus equals plus” isn’t just a rule to memorize—it makes real sense! With monkeys, bananas, and number lines, explore through stories and activities how removing a debt makes you richer… and why maths loves balance.

  • Are receipts recyclable?

    Are receipts recyclable?

    Have you ever thought about what happens to a receipt after you throw it away? Maybe, like I did until recently, you’ve always tossed it in the paper recycling bin, sure that was the right place. Well, guess what? We’ve been doing it wrong! Receipts actually belong in the regular trash because they’re not recyclable. I…