Algebra 2- 6th Period

Thinking About Numbers:  Natural Numbers, Whole numbers, Integers, Rational and Irrational Numbers

Essential Question:  What does it mean when we say a set of numbers provides for closure under an operation?

Content Objectives:  The students will be able to...

• Define the sets within the real number system.
• Define closure.
• Determine which sets are closed under the operations of addition, subtraction, multiplication, ,and division.

Language Objective:  The students will be able to explain if a set has closure under a given operation both orally and in written form.

Class Activities for February 15:
Cognitive Tutor (30 minutes)
Journal Entry- Test Talk Quadratics #1
Notes:  Thinking about Numbers
Skills Practice Thinking about Numbers due Friday