Demonstrate understanding of irrational numbers in both radical (including mixed radical) and exponent forms through:
- representing
- identifying
- simplifying
- ordering
- relating to rational numbers
- applying exponent laws.
[C, CN, ME, PS, R, V]
| (a) |
Sort, with justification, a set of numbers into rational and irrational numbers. |
| (b) |
Create and explain a pattern that describes the decimal form of an irrational number (e.g., write the digits from 0 to 9 in order, then put two of each digit – 0011223344... – followed by three of each digit and so on). |
| (c) |
Approximate the value of a given irrational number and explain the strategy used. |
| (d) |
Order a set of Real numbers, including rational and irrational numbers, on a number line and explain the strategies used. |
| (e) |
Express a radical as a mixed radical in simplest form (limited to numerical radicands). |
| (f) |
Express a mixed radical as an entire radical (limited to numerical radicands). |
| (g) |
Explain, using examples, how changing the value of the index of a radical impacts the value of the radical. |
| (h) |
Represent, such as through the use of a graphic organizer, the relationships among the subsets of the Real numbers: natural, whole, integer, rational, and irrational. |
| (i) |
Analyze patterns to generalize why $a^{-n}=1/a^n$, $a ≠ 0$ |
| (j) |
Analyze patterns to generalize why $a^{1/n}=^n√a,n ≠ 0,n∈I$ and $2 > 0$ when $n$ is an even integer. |
| (k) |
Extend and apply the exponent laws to powers with rational exponents (limited to expressions with rational and variable bases and integral and rational exponents):
|
| (l) |
Analyze simplifications of expressions involving radicals and/or powers for errors. |
| (m) |
Express powers with rational exponents as radicals and vice versa. |
| (n) |
Create a representation that conveys the relationship between powers, rational numbers, and irrational numbers. |
