Based on my experience and that of my own kids, what worked and didn’t:
Kids are all different so there is not one plan that will suit them all! In general though - K-6 should be half day of academics, half day of electives and free time, they just need to learn to read and do math comfortably, understand the idea of variables and some basic science about the physical world. Grades 7-12 should have science, literature, maths, art of some sort (kid choice - dance, music, visual art, creative writing, something that makes them think in a different way) and some learning about the world in a cultural sense - political geography, history, government styles. Some sort of physical education too - dance or sport for those able, health and gentle movement education for those who are not able, everyone should learn to maintain their bodies not just their mind, they are connected.
The kids of mine who went through the “IB” here got by far the best education of my offspring, but they were also the most naturally academic of the lot so it suited them, understand? The others would just collapse in the face of a program like that! You can’t just force everyone into the same shape.
I value:
Interesting work, good pay, flexible hours.
Don’t care about:
Moving up a ladder, job title, other recognition or appreciation except in the sense of keeping my job.
I am scattered and more creative than organized in most ways but like the work of accounting and systems much more than “creative” careers. Generally speaking at any job I evolve into the universal backup and people come to me for help with their work, can often see solutions others can’t.
I am literally incapable of doing something I don’t understand, so sometimes slow at the start.
And if I didn’t have to work for money, could live a full and happy life without a job. It’s not something I need, but I don’t mind working either.