have the whole situation in mind meaning in English

胸有全局

The technique training contains the content are many , for example : the wax pencil water color ' s modelling , cancels the line , the color ; the clay sculpture class rubs sticks the picture ; manual class paper folding , cutting out , glue , . . . . . . therefore , the technique training both must fasten tightly each class the key point , and must have the whole situation in mind , application of local experience to the entire area ; both must focus on all personnel schoolmate , and must consider the individual result prominent or ability weak schoolmate , teaches students in accordance with their aptitude ; both must praise encourages , and must counsel specifically , helps them to solve in the technical difficulty
技法训练包含的内容较多，如：蜡笔水彩的造型、勾线、上色；泥塑课的揉搓粘画；手工课的折纸、裁剪、粘贴， … …因此，技法训练既要扣紧每节课的重点，又要胸有全局，点面结合；既要着眼于全班同学，又要照顾个别成绩突出或能力较弱的同学，因材施教；既要表扬鼓励，又要具体辅导，帮助他们解决技术上的困难。