Monthly Archives: October 2006

Pre-Algebra: Chapter 4-9 Negative Exponents We have a new rule today for exponents. For any number “a” and any integer n, a to the negative nth power = 1 / a to the nth power. This is hard to explain … Continue reading →

Pre-Algebra: Chapter 4-8 Multiplying and Dividing Monomials We have the 2 rules on pages 205 and 206 to use when operating on monomials: You can multiply powers that have the same base by adding their exponents You can divide powers … Continue reading →

Somehow, Mr. E fell behind … Pre-Algebra Day 43 (Chapter 4-7, Friday, October 27) Least Common Multiple The least of the common multiples of 2 or more numbers is called the least common multiple (LCM) of the numbers. To find … Continue reading →

Pre-Algebra: Chapter 4, Lesson 3 Problem Solving We can use the techniques below to help problem solve: – Draw a diagram – Make an organized list – Look for a pattern – Try, test and revise (guess and check) – … Continue reading →

Pre-Algebra: Chapter 4, Lesson 2 Powers and Exponents An EXPONENT tells how many times a number, called the BASE is used as a factor. Numbers are expressed using exponents called powers. Algebra: Chapter 4, Lesson 6 Reasoning Strategies Three steps … Continue reading →

Pre-Algebra: Chapter 3 Test (yesterday – Wednesday) We took the Chapter 3 Test today and will finish tomorrow, Thursday Thursday, October 19 Chapter 4, Lesson 1 We finished the Chapter 3 Test and began lesson 1 of Chapter 4. We … Continue reading →

Pre-Algebra: Chapter 3, Lesson 8 (yesterday – Monday, October 16) Writing inequality problems by translating English sentences to algebra. “At least” means ≥ and “at most” means ≤. Today (day 35 – Tuesday) we reviewed for tomorrow’s test. We used … Continue reading →

Pre-Algebra: Chapter 3, Quiz A/B We took the Quiz A/B (11 problems) and it took a little more time than MrE thought. So … we moved Lesson 8 to Monday and the homework is due on Tuesday. Algebra: Chapter 3, … Continue reading →

Pre-Algebra: Chapter 3, Lesson 7 Multiplying and Dividing 1 step inequalities Just like we did with 1 step multiplication and division problems, we solve equations with inequalities treating the inequality as if it were an equal sign. There is ONLY … Continue reading →

Pre-Algebra: Chapter 3, Lesson 6 One step inequalities We solve one step inequalities just like we do for equalities. Just substitute the sign with an equal sign. Solve the problem with the equal sign and once you have the solution, … Continue reading →