答案：【解析】：
1. 对于第一个问题"How did the students try to explain the mistakes to the kid?"，需要回顾原文中关于学生们如何尝试向这个孩子解释错误的部分。原文提到，学生们使用了各种工具，如糖果、扑克牌、桔子、纸飞机等，以富有创造性的方式来解释错误。这是问题的关键信息。
2. 对于第二个问题"Why do you think the teacher hugged the kid and went hand in hand?"，需要分析原文中关于老师和孩子互动的部分。根据原文，这个看似“笨拙”的孩子实际上对数学了解很多，甚至超过了班上的其他人。可以推断，老师的拥抱和手牵手的行为可能是为了给予孩子支持和鼓励，同时也可能是为了保护他的自尊心，避免他在同学面前暴露自己的真实水平，从而保持他在课堂上的特殊角色。
【答案】：
1. They used all kinds of tools like candies, playing cards, oranges, paper planes and so on to explain the mistakes to the kid in creative ways.
2. The teacher hugged the kid and went hand in hand with him to support and encourage him, and probably to protect his self-esteem by keeping his true math abilities a secret in front of the class.