Form compound sentences with the coordinating conjunctions and, but, or

Join two simple sentences of equal weight using and (addition), but (contrast), or (choice). Begin with no comma at G1; introduce the punctuation pattern as 'a sentence + joining word + a sentence'.

Mastery threshold

90%

Min instances

Typical minutes

Spaced intervals (days)

1, 3, 7, 14, 30, 60

Prereqs

Successors

eng.g2.f.gr.coordinating_conjunctions_fanboys
(not yet loaded)

Common misconceptions

Run-on: writes 'I ran and I jumped and I climbed and I sang' (and-and-and stringing).
Mismatched: uses 'but' for addition ('I like pizza but I like apples') because the contrast logic is not yet internalized.

Exercise pool (11)

Diff	Stem	Type
1	Combine these two sentences with AND: 'I see a dog. I see a cat.'	sentence combine
2	Combine with AND: 'The sun is hot. The sand is hot.'	sentence combine
2	Write your own AND sentence about something you did with a friend.	sentence write original
2	Combine with AND or BUT (your choice — pick the best): 'I like apples. I don't like applesauce.'	sentence combine with choice
2	AND or BUT? 'My dog is small ___ he is brave.'	conjunction choice
2	Combine with OR: 'We can go to the park. We can go to the library.'	sentence combine
3	Write a BUT sentence about yourself: 'I love ___ but I don't love ___.'	sentence write original
3	AND, BUT, or OR? 'Do you want milk ___ juice?'	three way choice
3	Write one OR sentence offering two choices for breakfast.	sentence write or
4	Pick the BEST joining word (AND/BUT/OR/SO/BECAUSE) and combine: 'The sky was dark. We went inside.'	five way combine
5	Combine 'I have a cat. I have a dog.' Then write ONE sentence explaining your choice of joining word.	five way explain