The math to determine how many cubic yards of crushed stone you will need for a given number of tons follows: 1  Number of tons you need X 2000 pounds per ton = Number of pounds. 2  Number of pounds / pounds per cubic yard of material = Number of cubic yards needed.
Roll back curriculum constraints and give teachers the freedom to make professional judgements. The role of the teacher in an Australian classroom is changing, and not in a good way.
In 1982, Christa McAuliffe began teaching at Concord High School. In 1984, she learned of a program at NASA, Teacher in Space, to have a teacher on the space shuttle to communicate with students from space and lead them in lessons. She and 11,500 others applied.