This bundle contains the Phonics Passages for Unit 4. There is 1 Boom Cardâ„¢ Set for each week in unit 4. This bundle includes 5 Boom Card sets. This bundle includes a total of 100 cards. Sets included in the bundle are listed below.Unit 4 Week 1: Silent Letters: wr, kn, gn, mb, scUnit 4 Week 2: r-Controlled Vowels: er, ir, or, urUnit 4 Week 3: r-Controlled Vowels: or, ore, ar, oarUnit 4 Week 4: r-Controlled Vowels: eer, ere, ear Unit 4 Week 5: r-Controlled Vowels: are, air, ear, ereEach deck inc