September
21

September
18

# Parent Letter Unit 2: Expressions & Equations

Dear Parents,

Below is information regarding **Unit 2: Expressions & Equations**. Look for additional information for future units.

# Expressions & Equations

*By the end of this unit, students will understand that:**…*

- Variables can be used to represent numbers in any type mathematical problem.
- Understand the difference between an expression, an equation, and an inequality.
- Expressions are simplified and equations are solved for the variable’s value.
- Write and solve multi-step equations including all rational numbers.
- Expressions, equations, and inequalities can be used to represent and solve real world problems

# Vocabulary

**Algebraic Expression:**an expression consisting of at least one variable and also consists of numbers and operations**Numerical Expression:**an expression consisting of numbers and operations**Coefficient**: the number part of a term that includes a variable. For example,*3*is the coefficient of the term*3x***Constant:**a quantity having a fixed value that does not change or vary, such as a number. For example,*5*is the constant of*x + 5***Equation:**a mathematical sentence formed by setting two expressions equal**Inequality:**a mathematical sentence formed by placing inequality symbols ( >,<,≥,or ≤) between two expressions.**Term:**a number, a variable, or a product and a number and variable.**Variable:**a symbol, usually a letter, which is used to represent one or more numbers.*Try: http://intermath.coe.uga.edu/*

# Web Resources

- http://www.purplemath.com/modules/solvelin.htm
- http://regentsprep.org/Regents/math/ALGEBRA/AE2/LSolvEq.htm
- http://www.mathgoodies.com/lessons/vol7/equations.html
- http://www.math.com/school/subject2/lessons/S2U1L3GL.html
- http://www.math.com/school/subject2/practice/S2U1L3/S2U1L3Pract.html
- http://www.homeschoolmath.net/teaching/teach-solve-word-problems.php
- http://www.aaamath.com/equ725x7.htm
- http://education.jlab.org/sminequality/index.html

August
25

# Multiplying and Dividing Rational Numbers Independent Study

August
24

# Adding and Subtracting Rational Numbers Independent Study (Khan Academy)

August
17

# Mystical Magical Triangle Interactive Notebook Entry

August
15

# Adding and Subtracting Integer Flow Chart Interactive Notebook Entry

August
14

# Videos to help with adding and subtracting integers

August
14

# Adding Integers Interactive Notebook Entry

August
8

# PBS Math Club “What is an Integer?”

August
7