Remove the tank cover and check the water level after the fill valve has shut off. It should be about one inch below the opening of the overflow tube. If it is significantly lower than that, there may not be enough water in the tank to fill the bowl after a flush. Correct this by adjusting the float.
The average child can do this during the second half of this year. Between 24-36 months, children are typically able to work simple insert puzzles (e.g., completes a three-piece simple puzzle where pieces are whole objects). Also, children can remove a part from a toy (e.g., a wheel) and replace it.
A few months before he turned 3, he suddenly got it and learned all of his uppercase letters in about two weeks. The point is, 3 is a good age to teach letters, but do NOT stress and pressure your child to learn them. Do lots of fun things to teach and expose him to letters, but donât worry about it.