In an elementary school in Shenzhen, students are working hard for the "Sunshine Card". This incentive system has been implemented for five years. Teachers and students seem happy about it. But is it really effective? What impacts would it bring to the children? Why is this system so popular in China?在深圳市的石夏小學裡，學生都在努力，為求獲得學校獎勵的陽光卡。這種獎勵制度與量化的管理機制已經建立了五年的時間，學校的老師與同學彷彿都很滿意現狀，積極參與競爭。然而，它是否真實有效，切實可行？在孩子們的成長過程中到底有多大的影響呢？而它的存在本身，以及其在大陸小學的流行程度，又告訴我們甚麼？
