Cozmic Zoom App
9 The Mathematical World
For Grades: 6-8
Learning Goal 3a
The same number can be written in different forms, depending on its intended use.
Learning Goal 3b
How a quantity is expressed depends on how precise the measurement is and how precise an answer is needed.
Learning Goal 7
Computations (as on calculators) can give more digits than make sense or are useful.
Learning Goal 9
Exponents can be used to represent how many times a number is to be multiplied by itself. For example, 43 = 4 x 4 x 4.
For Grades: 9-12
Learning Goal 1
Comparison of numbers of very different size can be made approximately by expressing them as nearest powers of ten.