From Addition to Multiplication with discussion for adults

Ohio's Learning Standards (2017), Mathematics
3.OA.1 Interpret products of whole numbers, e.g., interpret 5 x 7 as the total number of objects in 5 groups of 7 objects each. (Note: These standards are written with the convention that a x b means a groups of b objects each; however, because of the commutative property, students may also interpret 5 x 7 as the total number of objects in 7 groups of 5 objects each).

Arkansas Mathematics Standards, Grades K-5, 2016
AR.Math.Content.2.OA.C.4 •Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns •Write an equation to express the total as a sum of equal addends
AR.Math.Content.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.

References:
[1] James Burnett, Calvin Irons, Peter Stowasser, and Allan Turton, ORIGO stepping stones 2.0 student journal book A grade 3, ORIGO Education, U.S.A., 2017.
[2] John W. Cook and N. Cropsey, The new advanced arithmetic, Silver, Burdett and Co., New York, NY, 1906.
[3] Calvin T. Long and Daune W. DeTemple, Mathematical reasoning for elementary teachers, 3rd ed., Addison Wesley, Boston, MA, 2003.
[4] Earle B. Miller and Robert M. Thrall, College algebra, The Ronald Press Co., New York, NY, 1950.
[6] Horatio N. Robinson, The progressive higher arithmetic, Ivison, Blakeman, Taylor & Co., New York, NY, 1874.

One place where you can find 'Street Math' discussed is Prof. Keith Devlin's book, "The Math Instinct." Again, please communicate with your classroom teacher if you have questions on presentations and expected answers. This may be helpful to you and your student in mitigating or eliminating frustration.

The representation of multiplication as repeated addition and the ways the groups are represented are debated topics in mathematics education. Robinson's perspective, which is a controversial perspective, is presented in the parent discussion.

📐 Cheerful Calculations! 🧮

0:00 Multiplication lesson
7:42 Discussion for adults

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Samsung Galaxy
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DuckDuckGo add-on
Zorin OS
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