Those who face problem in learning the sequence of Zodiacs here is a mental movie which you need to Visualize.
Aries (goat, mesh) goes to Taurus (bull, vrish) since both of them look similar they are know as Gemini (twins, mithun). when their powers become one they become Cancer (crab, cark). This crab goes to Leo (lion, singh) and gives him a message to go to Virgo (a girl, kanya). virgo takes out the Libra, (tula, beam balance) on this beam balance there is sitting a Scorpio (Scorpion, vrishchik) and he has a Sagittarius (bow and a arrow, dhanu) in his hand, which he shoots at Capricorn (crocodile, makar), and Capricorn run towards the Aquarius,(water, kubbh) to save his life. Aquarius (water) is the place where Pieces (fish, meen) live.
Hope now you can remember the sequence in the form of this story.
If you had already known what picture represented what zodiac sign it will be easier for you.
Once you learn these, we can move ahead with your learning.