刘东林 Singapore Math 5th Class B

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

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