In this first lecture of the Algebra 2 series, Dr. Eaton reviews Expressions and Formulas starting with order of operations. After defining variable, algebraic expression, and terms, Dr. Eaton dives into the proper way for order of operations. Then, she covers monomials along with definitions of constant, coefficient, degree, and power. Polynomials are next which cover binomials, trinomials, monomials, and like terms. She ends the lecture with an overview of the Pythagorean Theorem before going over four video examples which cover everything in the lecture.
When evaluating an expression, follow the standard order of operations: first calculate exponents, then multiply and divide from left to right, then add and subtract from left to right. BUT: parentheses always override the standard rules. Always work within parentheses first.
Review and understand the key terms: variable, expression, monomial, constant, coefficient, polynomial, term, like terms, binomial, trinomial.
Expressions and Formulas
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.