Great app for teaching prepositions – PrepositionBuilder™ Review

This app is a great visual app for teaching prepositions. My son finds it very motivating and enjoys the animated reinforcers when he has a correct answer. I do think this app is more appropriate for readers since they are expected to drag the correct answer into a sentence. I don't think it would be as helpful for pre-readers.
Review by Mrs. Tempered Sunshine on PrepositionBuilder™.