Publication Date
| In 2025 | 0 |
| Since 2024 | 1 |
| Since 2021 (last 5 years) | 1 |
| Since 2016 (last 10 years) | 2 |
| Since 2006 (last 20 years) | 2 |
Descriptor
| Addition | 2 |
| Algebra | 2 |
| Mathematics Instruction | 2 |
| Multiplication | 2 |
| Teaching Methods | 2 |
| Advanced Courses | 1 |
| Algorithms | 1 |
| Mastery Learning | 1 |
| Mathematical Logic | 1 |
| Mathematics | 1 |
| Numbers | 1 |
| More ▼ | |
Source
| International Journal of… | 2 |
Publication Type
| Journal Articles | 2 |
| Reports - Descriptive | 2 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewed
Direct linkSamuel B. Allan; Peter K. Dunn; Robert G. McDougall – International Journal of Mathematical Education in Science and Technology, 2024
In this note we demonstrate two instances where matrix multiplication can be easily verified. In the first setting, the matrix product appears as matrix element concatenation, and in the second, the product coincides with matrix addition. General proofs for some results are provided with a more complete description for 2×2 matrices. Suggested for…
Descriptors: Mathematics Instruction, Teaching Methods, Multiplication, Addition
Dobbs, David E. – International Journal of Mathematical Education in Science and Technology, 2017
Let R be a ring with identity. Then {0} and R are the only additive subgroups of R if and only if R is isomorphic (as a ring with identity) to (exactly) one of {0}, Z/pZ for a prime number p. Also, each additive subgroup of R is a one-sided ideal of R if and only if R is isomorphic to (exactly) one of {0}, Z, Z/nZ for an integer n = 2. This note…
Descriptors: Numbers, Mathematics Instruction, Mathematics, Algebra
