What grade did you learn the twelve solar terms?

The second grade of primary school Book 2 Twenty-four solar terms

Twenty-four solar terms are jingles: spring rains shake spring and clear valley days, summer is full and summer is hot, autumn is cold and frost falls, and winter snow falls. The twenty-four solar terms are:

1, spring: beginning of spring, rain, fright, vernal equinox, Qingming, Grain Rain;

2. Summer: Long summer, Little Man, Mangzhong, Summer Solstice, Little Summer and Big Summer;

3. Autumn: beginning of autumn, early summer, Bailu, autumnal equinox, cold dew and early frost;

4. Winter: beginning of winter, light snow, heavy snow, winter solstice, slight cold and severe cold.