And after she had said this, she went back and called her sister Mary aside. “The Teacher is here,” she said, “and is asking for you.”
“secretly” (KJV) = “aside” (NIV) = Apparently either Martha wanted to give her sister some time alone with Jesus or she had been instructed by Jesus to secretly approach Mary because He wanted to spend some time alone with her.
“The Master” (KJV) = didaskalos = “The Teacher” (NIV). Perhaps the major word here is “the”. Jesus is incomparable; He is not just a teacher, He is The Teacher. There is no other like Him. Also of interesting note is that this term is being applied by women. All other rabbis refused to instruct women, but not Jesus.