One thing I enjoyed teaching was SEAL material. I taught in a number of primary schools and have gathered all my stuff together. Covers all years but especially years 4 5 and 6. You get absolutely loads in the zip. I’ve uploaded a few powerpoints for you to look at. Loads of topics covered such as health, relationships, bullying etc sampl :

From my schools. Anti Bullying week stuff. Lots of powerpoints and word documents. Great springboard for your ideas. Adapt for your school. Great for assemblies.