算术

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描述

还记得你的乘法表吗?……我也不记得了。运用这个激动人心的游戏来复习你的乘法、除法以及因子分解的能力。不允许使用计算器哦!

示范 学习目标

  • 解释乘法表是如何促进乘法、因子以及分解的理解。提高乘法、因子分解、除法的精确度。

Standards Alignment

Common Core - Math

3.OA.A.1
Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 × 7.
3.OA.A.2
Interpret whole-number quotients of whole numbers, e.g., interpret 56 ÷ 8 as the number of objects in each share when 56 objects are partitioned equally into 8 shares, or as a number of shares when 56 objects are partitioned into equal shares of 8 objects each. For example, describe a context in which a number of shares or a number of groups can be expressed as 56 ÷ 8.
3.OA.A.4
Determine the unknown whole number in a multiplication or division equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 × ? = 48, 5 = _ ÷ 3, 6 × 6 = ?
3.OA.B.5
Apply properties of operations as strategies to multiply and divide.2 Examples: If 6 × 4 = 24 is known, then 4 × 6 = 24 is also known. (Commutative property of multiplication.) 3 × 5 × 2 can be found by 3 × 5 = 15, then 15 × 2 = 30, or by 5 × 2 = 10, then 3 × 10 = 30. (Associative property of multiplication.) Knowing that 8 × 5 = 40 and 8 × 2 = 16, one can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56. (Distributive property.)
3.OA.B.6
Understand division as an unknown-factor problem. For example, find 32 ÷ 8 by finding the number that makes 32 when multiplied by 8.
3.OA.C.7
Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.
3.OA.D.9
Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that 4 times a number is always even, and explain why 4 times a number can be decomposed into two equal addends.
版本 2.03

教师指南

下载教师指南 PDF 仿真程序控制概述,简化模型,学生视角的思考 ( PDF ).

教师提交的活动

Juego de Aritmética (Basado en Indagación) 一颗金星 象征着 是通过PhET设计指南所设计出来的高质量的探究活动。 这个贡献是由PhET设计的。 Trish Loeblein, traducido por Diana López 高中
初中
家庭作业
指导
数学
Arithmetic Games (Inquiry Based) 一颗金星 象征着 是通过PhET设计指南所设计出来的高质量的探究活动。 这个贡献是由PhET设计的。 Trish Loeblein 高中 实验室 数学
Alignment of PhET sims with NGSS 这个贡献是由PhET设计的。 Trish Loeblein 高中 其它 地理
化学
生物学
物理学
How do PhET simulations fit in my middle school program? 这个贡献是由PhET设计的。 Sarah Borenstein 初中 其它 地理
生物学
化学
物理学
곱셈 나눗셈 연습 SIM 사용설명서 이화국(Wha Kuk Lee) K-5
初中
家庭作业
概念性问题
示范
物理学
数学
OBJETO DE APRENDIZAGEM: ARITHMETIC Arlete Moura de Oliveira Cabral e Maria Cleide da Silva Barroso K-5 指导 数学
Operações Aritméticas Fundamentais Georgyana Cidrão; Francisco Régis Vieira Alves K-5 实验室
指导
数学
MS and HS TEK to Sim Alignment Elyse Zimmer 初中
高中
其它 化学
物理学
生物学
Math facts - Using the Multiplication Chart Tapan Sarkar 初中 实验室 数学
Back to the Basics Nyetta Abernathy K-5
高中
初中
家庭作业
实验室
数学
Discovering divisibility rules Stacy Larson 初中
高中
实验室 数学

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开发团队 第三方支持 感谢
  • Michael Dubson (developer/lead)
  • Trish Loeblein