Last modified: September 6, 2023
数学 Math
- Math Quizlet
- Smarter Balanced Math Practice (Similar to Sage math test)
- Sage Math Practice
Khan Academy
- Multiplication & Division
I. 1000以内的数之加减法 Addition & Subtraction within 1000
影片Videos
- 数线整数 (请选择整数 Choose Whole numbers)
- 数的次序 Number Sequences
- 数的大小 Put numbers in order
- 加法的特性 Properties of Addition
- 数线 Number Line Game 1.
- 数线 Number Line Game 2.
- 用数线做减法 How to subtract by using number lines
- 加法交换性 Commutative Property Video
- 加法的和 Sum of the addition game
- 数字的规律 Number Patterns
- 利用数字属性做加法 Use Properties to add
- 利用位值做加法 Use Place Value to add
- 用友好的数做加法 Addition using Friendly Numbers
- 三位数展开式 3 digit numbers written in Expanded Form
II. 四舍五入 Rounding 影片 Videos
- 四舍五入 Rounding Numbers
- 我是四舍五入小皇后 Rounding Queen
- 四舍五入到百位数 Rounds to the Nearest Hundreds
- 十位和百位数的四舍五入 Rounding to the Tens and Hundreds
- 估计 To Estimate (找差不多的总数,而不是精确的总数,You are finding the “about” sum, instead of the exact sum.)
III. 估计 Estimating 影片 Videos
- 用四舍五入做估计 Estimation Using Rounding
- 加法和减法的估计 Estimating Sums and Differences
- 四舍五入和估计 (歌曲) Rounding and Estimating (song)
IV. 图表 Bar Graph
- Bar Graph
- Bar Graph Video 1
- Using Graphing to present data video
- Learn All About Picture Graphs video
V. 加法应用题 Addition Word Problems Videos
Practices
- Addition Word Problems 1
- Addition Word Problems 2
- Addition Word Problems 3 (2 steps)
- Addition Word Problems 4 (2 steps)
- Addition Word Problems 5 (3 digits)
- Addition Word Problems 6 (3 digits & 2 steps)
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乘法运算 Multiplication
影片 Videos
- 基本乘法 (jī běn chéng fǎ) Basic Multiplication
- 乘法介绍 (chéng fǎ jiè shào) Introduction to multiplication
- 九九乘法表 Time Tables
- 九九乘法歌 A Song of Multiplication tables 2 to 10
- 九九乘法歌 (中文)A Song of Multiplication tables (Chinese)
面积的计算 Area
周长的计算 Perimeter
除法 Division
- 什么是除法?What is the division?
- 除法的词汇 Vocabularies of Division
- 除法的直式计算(zhí shì jì suàn) How to Do Long Division?
- 除法游戏 Division math Learning Games for Kids
除法影片 Videos for Division
- 除法 1 Division 1
- 基础除法 Basic Division
- 一位数除法 One-digit Division
- 除法-题目动画 (中文)
- 除法-分分看 (中文)
- 除法的横式计算 (中文)
- 除法的直式计算 (Long Division)(中文)
分数 Fraction
分数影片 Videos for Fraction
- 基本分数 Fraction basics
- 基础分数 Fraction basics (中文
- 分等分 Cutting shapes into equal parts
- 平分 Equally divided (中文
- 等值分数影片 Equivalent Fraction 1
- 等值分数 Equivalent Fraction 2
时间 Time
- 现在几点了?What time is it? (练习)
- 现在几点了?What time is it? (练习 2)
- 说说时间 Tell Time for Children video
- 说说时间 Learn to tell time video 2
- 间隔多少时间呢?Elapsed time video 1
- 用数线算时间间隔 Elapsed time open number line video 2