How to choreograph a 150-person finale program, music with (love my China) God help!

At the beginning of the existing 30 middle school students at the end of the stage in the middle part, according to a row of 6 people standing in 5 rows first sing the first two lines: love my China. At the same time there are 20 elementary school students, each elementary school students are holding the national flag from the stage at the end of the cross forward running and then in the front relative to run to the center, respectively, led by the lead two people led to the rear running, has been running to the 30 secondary school students before, divided into two halves of the next stage. At the same time as the 20 elementary school students off the stage, the other 60 middle school students in two halves up to the beginning of the 30 people on both sides of the stage, at this time the song this is: Sailor Sailor Sailor Sailor ....... -Hey. At the same time, the remaining 40 elementary school students in a row of 8 people ****5 rows in two halves on the field in a rectangular dance on the field. At the end of the first section, these 40 people quickly turn into 6 circles, with one person standing in the center-most circle, 4 in the second circle, and 8 in the third circle, jack standing. Then all squat down and stand up at the same time with a final cry. The second section of this circle based on the action, wait until singing: fifty-six ethnic brothers and sisters, fifty-six languages into one sentence. When you can do the ups and downs of the circle (a three five circle according to the level of stand up, at this time 2, 4, 6 circle squatting, and then exchanged, in the exchange of the best 5 to 8 times appropriate), and then sing: "love me" all squatting, "China" all stand up. Then the interlude began to change the formation (the circle is divided into two halves, from the front of the two people in the middle of the most people led around the field to walk in a circle after the rapid concentration in the center of the stage the more intensive the better, until the singing of "Sailo Sailo Sailo ......") When the 20 elementary school students at the beginning of the two sides of the field to run to the front of all the people, standing in a row or two rows; at the same time within the 40 elementary school students and 90 secondary school students divided into two halves of the stage in the middle of the back of each of their respective duties) and then began to jump to the next section of the interlude when the front 20 people in an arc dipped full of the field, the back of the two groups of elementary school students were around the secondary school students in a circle, and then began the next section, and so on, when singing "Fifty-six ethnic brothers and sisters ............ Love my China, hey!" All centralized together, and then in the immediate dispersal to the whole field