Here are some excellent resources with very good ideas on how to help your child with learning in the core curriculum areas at home.

https://parents.education.govt.nz/assets/Documents/Primary-School/What-will-my-child-learn-at-each-year/Year3SupportingYourChildsLearning.pdf

https://parents.education.govt.nz/assets/Documents/Primary-School/What-will-my-child-learn-at-each-year/Year4SupportingYourChildsLearning.pdf