> Lying is a core part of communicating mathematics. We lie to kindergarteners when explaining fractions. We lie to fourth graders when approaching limits... Hard disagree. Lying is with intention to deceive. Teaching is simplifying with the intention that they understand and get the correct intuition. Math is not about lying, that's just silly.
What exactly is the lie? 1/4 and 3/8 equals 5/8. Is there’s something more to that? Is that fundamentally wrong?