I have been working on some PowerPoints with word problems. When I am writing the problems, I make sure to include Join, Separate and Part, Part, Whole problems as well as Two Step problems.
The PowerPoint is set up so that the students see the problem, work the problem, and choose the answer. You may provide counters or blocks for students who need to use them. I like to have students write their answers on individual wipe off boards, so I can see the responses immediately. You could also have students write their answers on paper.
Farm is a popular theme to use the in the spring. Check out my problem solving PowerPoint with a farm theme. Do you need some math problems with rigor and a farm them? Check out Math Word Problems Farm Theme for grades 1 – 3.