My classes have been covering vowel teams for quite some time so the kids already understand what magic E and 言葉の中に使えるチーム means but if you haven't taught/ reviewed them a quick explanaiton may be necessary.
Important note that this by no means covers all of the English vowel teams, it's just the ones I thought important for my ES students to know by rote.
Let me know if you have any questions!
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