I have looked exhaustively for an explicit match to the Alabama Fifth-Grade Social Studies Course of Study Standard 2.
2. Identify causes and effects of early migration and settlement of North America.
Nothing in any textbook, website, or even Social Studies Weekly explicitly teaches this content standard effectively.
Nothing until now that is! This has all you need to start effectively teaching this standard!
Get some index cards and let the kids make flash cards with the cause on one side and the effect on the other. Then let student pairs play a match game with them. Read these aloud, let students make flash cards, then let them play the match game. The total time is around 90 minutes. Of course you can allow time on other days for the flash card match game for review. Also, you can let them make the flash cards after verbally introducing the subject matter and that takes around 60 minutes. They can play the match game other days.
Base your formative and summative assessments with this.
Of course other states and grades require this knowledge too, so please use this no matter what grade level or state you teach in!