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1 comentarios:
The prime vs. composite distinction is the foundation everything else builds on, so it's great to see it get its own post with a video. I've found that having students sort numbers into prime/composite columns first makes the Sieve of Eratosthenes and factor trees much easier later. The classic stumbling block is 1, which is neither — worth calling out explicitly! Full disclosure: I run factorcalculator.org, a free factor/LCM calculator site, which teachers sometimes use as a quick self-check after lessons like this.
The prime vs. composite distinction is the foundation everything else builds on, so it's great to see it get its own post with a video. I've found that having students sort numbers into prime/composite columns first makes the Sieve of Eratosthenes and factor trees much easier later. The classic stumbling block is 1, which is neither — worth calling out explicitly! Full disclosure: I run factorcalculator.org, a free factor/LCM calculator site, which teachers sometimes use as a quick self-check after lessons like this.
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