In this objective, children will learn how to add the prefix in- and its assimilated forms im-, ir- and il- to bases and stems to form new words. Over six 20-minute lessons, they will:

·        Learn that the prefix in- carries the meaning “not”
·        Learn that when a base or stem begins with the consonant letters m, p or b, prefix in- is assimilated to prefix im-
·        Learn that when a base or stem begins with the consonant letter l, prefix in- is assimilated to prefix il-
·        Learn that when a base or stem begins with the consonant letter r, prefix in- is assimilated to prefix ir-
·        Explore a range of bases and stems that can fix to the prefix in- and its assimilated form
·        Learn that prefix in- can also carry the meaning “into or upon”
·        Explore the etymology of a range of bound bases
·        Complete sentences by adding the correct assimilated form of prefix in- to bases and stems
·        Build word sums
·        Sort bases and stems depending on which assimilated form of the prefix in- they would take
·        Reinforce learning with a practical game

 Resources included:

·      Editable PowerPoint covering 6 lessons (20 minutes each)

·      Teacher guidance with optional activities

·      Supporting worksheets including bound base activities and prefix sorting

·      A range of practical activities including a courtroom word challenge

·      Two fluency activities (with answers)

·      A reasoning activity (with answers)...