Have the child compare the letter on the page to the hand shapes. Use a wooden movable alphabet that is painted on one side. The child can feel the shapes, and the painted side gives a clue as to the proper direction of the letter. Spell words with the alphabet.
Wet and Forget 1 Gal. Moss, Mold, Mildew and Algae Stain Remover is the easy, one-step solution to removing outdoor moss, mold, mildew and algae. No scrubbing, rinsing or power washing required. This EPA-registered product is non-caustic, non-acidic and contains no bleach. Wet and Forget is safe for all outdoor surfaces.
Welcome to the forum! If the water doesn't drain out of the pot, the plant's roots will rot. No way to avoid that. The green you see on the concrete is probably algae. It should be easy to kill it with a little algacide, such as is made for fountains, birdbaths, ponds and aquariums. It works really well in my ponds and birdbaths.