Having the prepositions of time listed and in sections is nice. But I would also have more graphic examples. I would make a worksheet where the students matched examples to the appropriate preposition of time.
English vocabulary: different types of weather. For classroom activity, give kids a mini pack of weather cards. play sounds or show other pics asaociated with one of the weathers. Kids can hold up the correct card to match the correct term to the weather.
Infographic: The 12 most misunderstood English words. So I was chatting with someone earlier this week and they used one of these words the "misunderstood" way, and I said, I think you mean this. and they thought I was wrong!