Certify Teacher Practice Test

Mr. Brown is focusing on numeric representation when asking his students to solve for missing angles in triangles. This approach involves using numbers and numerical calculations to determine the measures of angles based on known values, such as the sum of angles in a triangle being 180 degrees.

In solving for missing angles, students employ arithmetic operations and numerical analysis to reach their answers. Numeric representation is essential in this context because it directly engages students in quantifying and manipulating the measurements involved in the triangle's angles.

The other representation types mentioned—symbolic, verbal, and geometric—do play roles in mathematical problem-solving but do not align with solving for specific angle measures through numeric calculation. Symbolic representation might involve using letters or symbols to denote angles, while verbal representation would encompass explaining the problem in words. Geometric representation would pertain to visual representations of triangles but is distinct from the numerical approach of calculating measures.