11/10/2019

Lesson 10

Midterm exam paper review

Percentages

1. What is percentage?
• Special fraction #/100=#%
• percent ( for short)
• few interesting percent: 0%, 100%

2. Percent <====> Fraction form

25%= 25/100. 3%= 3/100

4/5=80/100=80%. 1/8=0.125=12.5%

3. Percent <=====> Decimal Form

20%=0.2. 77%=0.77. 4%=0.04

• Move decimal point to two places to the left

0.075=7.5%. 0.225=22.5%. 0.8=80%

• Move decimal point to two places to the right

Homework:

1. Correct Midterm exam paper
2. Workbook 6A P43-45 1, 2, 3. P46. 2
3. Practice 4A paper

11/03/2019

Lesson 9

Solid Figures

• Drawing solid figures
• Nets

10/27/2019

Lesson 8

Midterm Exam

10/20/2019

Lesson 7

Review lesson, we will have the midterm exam on October 27,2019.

1. Ratios

•  Express the ratios in their simplest forms
•   Changing ratio
•  Example: 99 to 132   3:4         3.5 to 24.5    1:7

2. Proportion

• Missing proportion
• Proportions word problem
• Examples:  196:182=       :91

3. Algebraic expressions

•  Algebraic expression
• Evaluate expressions
• Simplifying expressions
• Examples: find the value  y – 1 + 4, if y=3.     6
Simplify the expression  2 – mn – 2 + 2mn     mn

Homework

worksheet  Review A

10/13/2019

Lesson 6

1. Review

2.  Algebraic Expressions

• Like terms
• Evaluate:   1)Substitute 2) Using parentheses
• Simplifying: 1) combining like terms 2) using distribution property

Homework

practice 1A

10/06/2019

Lesson 5

1. Review

2. Algebraic Expressions

• Expression: numeric expression , algebraic expression
• vocabularies: Term, Coefficient, Variable, Constant

Homework

workbook

p.5-7. 1,2,3,4

09/29/2019

Lesson 4

1. Review

2. Changing ratios

Homework

workbook

p.32-33. 1,2

p.34-35  1,2

p.36   3

09/22/2019

Lesson 3

1. Review

2. Ratios & Proportions

•    Cross multiplying

3. Do Practice 3B

4. Group competition (worksheet)

Homework

2 pieces of worksheets

09/15/2019

Lesson 2

1. Review

2. Do practice 3A

3. Ratios & Proportion

Proportion: a pair of equivalent ratios

What are proportions good for?

Homework:

workbook

p.28-29 1,2  p30-31  1,2,3

09/08/2019

Lesson 1

1. What is ratio?

2. Writing ratios

Word form: 2 to 3

Colon form: 2 : 3

Fraction form: 2/3

3. Equivalent ratios/ Simplest form

Homework:

Workbook

P.23  3, p.24  1,  p.26-27  1,2