~ Tension is how much the reader care's about your characters. If the reader doesn't like your characters, enjoy spending time with them, or care what happens to them, that's what editors call, "Lacks Tension." Believe me. I've had enough return letters to prove it.
Suspense is how much readers care what will happen next? If you keep them guessing, that's suspense.
I'm guessing your asking for a grammar check? If so then...
After the children left the school bus, they dropped their bags on the front proches of their houses. The children yelled "Hello!" to their mothers and fathers and ran towards the playground to play tag with each other.
Huh? Is this a type of riddle lol?
