Your link:Morning! Might I recommend that since you have raised beds and you are descibing using a commercial dirt preparation, that you add greensand, or vital nutrients? When we moved, I had to begin beds all over again, and the time it takes for the microbiome to grow can really hinder immediate planting and sufficient optimization of nutrients. I would even do this before composting as it also takes time and in my experience, is best to install compost in new beds in the fall the first time so that it has a winter to decompose. Worms are a must also, as suggested. My hubs is from LA, and also notes that you may need some small rocks if you do not have them mixed in the dirt, in order to make sure that there is sufficient drainage for the typical extra rain water. As to the greensand, sometimes they can be located at your local feed store, usually in a large quantity or you can purchase some here: https://www.gardeners.com/buy/greensand-fertilizer ....a bag per bed would be best initially. Best of luck and let me know how it goes! Since you are working with kids, you might also want to research some pyramid information and experiement with how very tall your tomatoes will grow under a simple 4 stick, 7 foot tall pyramid!