L.3.4.b: Use prefixes and suffixes to find meaning.

Official text

Determine the meaning of the new word formed when a known affix is added to a known word (e.g., agreeable/disagreeable, comfortable/uncomfortable, care/careless, heat/preheat).

What it means for your child

Your child figures out the meaning of a new word formed when a prefix or suffix is added to a known word, like agreeable or uncomfortable.

Try it at home

1. Add prefixes to words you know: happy, unhappy; read, reread.
2. Ask, 'What does 'careless' mean? How do you know?'
3. Make new words with -able and -ful and say their meanings.