Instructor:

Mr. Ahmed Hefny

Attendance:

Adan, Omar, Areej

Handout:

PreAlgebra Chp 2

Problems Solved in Class:

Chosen exercises from chapter 2

Concepts:

* Definition of exponent
* Properties of exponent:
 Not commutative
 Not associative (default order is top to bottom)
 Does not distribute over addition
 Distributes over base multiplication (ab)^c = a^c * b^c
 1 is a "right identity" element.
* (a+b)^2 = a^2 + b^2 + 2ab. It can be proven using distributive property.
* Negative powers.
* 0th Power.
* Powers of 0.

Student Difficulties:

. Students still have difficulties using variables to prove general statements.
. A problem that took un expected long time is showing that:
(2a+2b)^m = 2^m (a+b)^m
Students had trouble figuring out that this is a simple application of distributive properties.

Homework:

· Chapter 2: Please watch teh videos and make sure you can solve example problems.
. Solve exercises: 2.1.2, 2.1.5, 2.1.9, 2.2.6, 2.2.10, 2.2.11, 2.4.6
. Solve review exercises: 2.45, 2.50. 2.76

Notes:

Sunday, May 8, 2016
Division M2 Session 5/8/2016
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