Descriptor
| Geometric Concepts | 1 |
| Geometry | 1 |
| High Schools | 1 |
| Mathematics Education | 1 |
| Matrices | 1 |
| Problem Sets | 1 |
| Problem Solving | 1 |
| Proof (Mathematics) | 1 |
| Thinking Skills | 1 |
| Triangles (Geometry) | 1 |
| Trigonometry | 1 |
| More ▼ | |
Source
| Mathematics Teacher | 1 |
Author
| Barry, Donald | 1 |
Publication Type
| Guides - Classroom - Teacher | 1 |
| Journal Articles | 1 |
Education Level
Audience
| Practitioners | 1 |
| Teachers | 1 |
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewedBarry, Donald – Mathematics Teacher, 1992
Presents 14 distinct methods to determine the sine of the angle formed by the line segments joining one vertex of a square to the midpoints of the nonadjacent sides. Nine methods were developed by mathematics club participants preparing for mathematics competitions and the remaining five by faculty members. (MDH)
Descriptors: Geometric Concepts, Geometry, High Schools, Mathematics Education
