English Vocabulary Conceptual 6–9 yrs

Root Words & Inflections

词根与词形变化

Description

Identify frequently occurring root words and their inflectional forms (e.g., look/looks/looked/looking), using affixes as clues to word meaning and understanding how suffixes create nouns and adjectives

Mastery Evidence

✓ Identify 'play' as the root in 'played', 'playing', 'player'
✓ Explain that '-ful' in 'careful' means 'full of care'
✓ Use '-ness' and '-er' to form nouns from root words: 'sad → sadness', 'teach → teacher'

Assessment Prompt

When your child sees words like "play," "plays," "played," and "playing," do they understand they all come from the same root word and can they use each form correctly?