Prefix in-
Build vocabulary through prefix in-, then use the target words in gap-fill and discussion activities. Includes a teacher answer key.
What’s in the worksheet?
- Target vocabulary with clear definitions
- Gap-fill practice using each target word
- Discussion questions for speaking practice
- Teacher answer key on page 3
Build vocabulary with in- adjectives for research, authenticity and eligibility, then use the eight target words in sentence completion and discussion.
Worksheet preview
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Page 1 of 3 · A4 printable PDF
Page 2 of 3 · A4 printable PDF
Page 3 of 3 · Answer key · A4 printable PDF
A simple way to teach it
Before the lesson
Use pages 1–2 and keep the teacher key on page 3 for feedback. Introduce inconclusive and incompatible, checking meaning and pronunciation before the gap fill.
- Distinguish inconclusive results from incomprehensible language; treat inadmissible as vocabulary in the fictional legal example, not legal advice.
- Complete the eight sentences using each vocabulary word once. Compare choices with a partner and explain the context clues before checking the key.
- Discuss unclear research results, inauthentic items and inessential details. Use the five printed questions for pair discussion and short notes; responses are individual, not fixed-key answers.
Support and extension
Support with result / access / authenticity categories; extend by explaining how a report could be clearer without claiming its findings are conclusive.
Suggested approach. Adjust the pace and number of questions to suit your class.
