Category Archives: Math 8

Algebra: Chapters 9-5 and 9-6 (Friday and Monday), p 417 and 421 Inequalities in 2 variables and Graphing Systems of Linear Inequalities Inequalities in 2 variables (e.g., `2x – y > 5`) can be solved just like the equation `2x … Continue reading →

Algebra: Chapter 9-4, p 413 (Thursday) Inequalities and Absolute Value We do the same thing as yesterday’s lesson. We find the 2 equations to solve. There are 2 differences however: If the equation is of the form  `|A| ≤ b`, … Continue reading →

Algebra: Chapter 9-2, p 405 Compound Sentences A sentence like `x>5 and x ≤ 12` is called a conjunction. A conjunction of 2 statements is formed by connecting them with the word “and”. A conjunction is true when both statements … Continue reading →

Day 77 – Friday, February 1 Algebra: Chapter 9, Lesson 1, p 400 Sets, Intersections and Unions A set is a well-defined collection of objects called members or elements Roster notation LISTS the members of the set. Set-Builder Notation gives … Continue reading →

Algebra: Midterm Review We went over the midterm review problems last Wednesday, January 23 in class. The midterm begins tomorrow, Wednesday and Thursday, January 30 and 31. Be ready! Math-8: Chapter 6-6, p 301 Measures of Central Tendency Last Wednesday, … Continue reading →

Algebra: Midterm Review packet Worked on all review packet problems in class today. Bring questions tomorrow and we continue working as well. Math-8: Chapter 6, Quiz A/B Finish Chapter 6, Lesson 6 and the Quiz A/B for all those not … Continue reading →

Algebra: Chapter 8 TEST! Math-8: Chapter 6-5, p 295 Multiplying and Dividing Decimals You can multiply in the same way that you multiply whole numbers. It is helpful to use estimation to verify the placement of the decimal point. To … Continue reading →

Algebra: Chapter 8 Review Test tomorrow! Math-8, Chapter 6-4, p 289 Dividing Fractions Two numbers whose product is `1` are multiplicative inverses or RECIPROCALS of each other. So `2` and `1/2` are reciprocals. In symbols, for a fraction `a/b`,  and … Continue reading →

Algebra: Chapter 8-5, p 380 Motion Problems Today we worked on  problems 3, 5, 7, 9, 11 and 13. We did these in class and 2 of these types will be on the Chapter 8 test and the ALGEBRA MIDTERM … Continue reading →

Algebra: Chapter 8-5, p 380 Motion Problems Yuck – DRT problems, distance, rate and time. Rate is another word for speed or velocity. You have a rate meter in your car, its called the speedometer. These problems are best outlined … Continue reading →