This is four worksheets to work on the diphthong sound of "oo". There is a cut and paste, comprehension page, make a word page and a word search. All are concentrating on the oo sound. I tried to keep vocabulary easy so that all are able to do these. I hope you like this set of worksheets and if so I have many others that work on just one sound like these on my teacherspayteachers website, Becky's Classroom Products. Feedback is always appreciated!