Short answer
Enter your child's date, time and place of birth in the Moon-sign finder to get their Rashi (Moon sign) and Nakshatra (birth star). Those connect your child to tradition, but no Moon sign predicts intelligence or exam results. Interests, effort, good teaching and the right support decide how a child does; astrology can at most offer a lens for reflection.
How ChiChakra reads this
In Vedic tradition, Mercury (learning), Jupiter (wisdom) and the 4th and 5th houses (schooling and intellect) are linked with study. ChiChakra does not publish predictions about a child's ability. We calculate the Moon sign and Nakshatra carefully and leave the labels aside.
Supporting their studies
Check the birth time carefully. The Moon changes sign about every 2.25 days, so a child born near a boundary can show a different Rashi with a small time error.
Ask your child which subjects they enjoy and where they get stuck, and talk to their teachers before reading anything into a chart.
In exam season, the forecast can help you plan calmer revision days, but practice and sleep do the real work.
Good to know
A birth star is a cultural marker, never a ceiling. Avoid telling a child their sign makes them good or bad at anything.