Education of Mary by Anna (right), Presentation of Mary in the temple (left)

Protoev. James 7: 2-3
And the child grew strong day by day; and when she was six months old, her mother set her on the ground to try whether she could stand, and she walked seven steps and came into her bosom; and she snatched her up, saying: As the Lord my God lives, you shall not walk on this earth until I bring you into the temple of the Lord. And she made a sanctuary in her bed-chamber, and allowed nothing common or unclean to pass through her. ... And when she was a year old, Joachim made a great feast, and invited the priests, and the scribes, and the elders, and all the people of Israel. And Joachim brought the child to the priests; and they blessed her, saying: O God of our fathers, bless this child, and give her an everlasting name to be named in all generations.

Pseudo Matthew 4
And having weaned her in her third year, Joachim, and Anna his wife, went together to the temple of the Lord to offer sacrifices to God, and placed the infant, Mary by name, in the community of virgins, in which the virgins remained day and night praising God. And when she was put down before the doors of the temple, she went up the fifteen steps so swiftly, that she did not look back at all; nor did she, as children are wont to do, seek for her parents. Whereupon her parents, each of them anxiously seeking for the child, were both alike astonished, until they found her in the temple, and the priests of the temple themselves wondered.

Nativitatis Mariae 6: 1-3