Key learning points

1. A prefix is a letter or group of letters at the start of a word which changes its meaning.
2. The prefixes co-, com- and con- mean ‘together’ or ‘with’.
3. The prefix pre- means ‘before’ and pro- means ‘ahead’.
4. A hyphen can join a prefix to a base word to avoid ambiguity in meaning or spelling.
5. How to spell the curriculum words: complete, programme and develop.

Keywords

• Prefix - a letter or group of letters added to the start of a root word to change its meaning

• Root word - the base word from which other words are formed often by adding prefixes or suffixes

• Hyphen - a hyphen can join a prefix to a base word to avoid ambiguity in meaning or spelling

Common misconception