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Vocabulary, spelling and word formation · Duolingo English Test · Courselo

Courselo

DET
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Foundations and test strategy

Vocabulary, spelling and word formation

Foundations and test strategy · Lesson 1 of 4

Lesson 1 of 4

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Unit 5

Foundations and test strategy

4 lessons · 4 h 35 min of study

Vocabulary, spelling and word formationReading · 0%
Grammar for accuracy and range1 h 20 min of study
Developing ideas and coherence on the clock1 h of study
Adaptive test strategy, timing and proctoring rules45 min of study

This unit is ≈15% of the DET, across 4 lessons. Full syllabus

Lesson 1 of 4 · Foundations and test strategy

Vocabulary, spelling and word formation

3 quick checks≈5% of the testCore: Core: tested on most papers

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By the end you’ll be able to

Know high-frequency and academic words with their common collocations and fixed phrases
Apply English spelling rules and patterns (doubling, silent letters, -ible/-able, ie/ei, American and British variants)
Form words across parts of speech with prefixes and suffixes (decide → decision → decisive → decisively)

Practice this skill

Adaptive questions on vocabulary, spelling and word formation.

Practise this topic

0% read

Recognise what possible and impossible English words look like, to support Read and Select

Use less common, precise vocabulary accurately in writing and speaking

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