few_shots: 
Example:
Concept/skill: 
Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.

Problem/activity:
Find the general solution for:
$${\mathrm{cos}\left({\pi\over2}+x\right)=\mathrm{tan}{\pi\over4}}$$


Answer: 
No. This problem does not directly teach how side ratios in right triangles lead to definitions of trigonometric ratios. Instead, it involves solving a trigonometric function.

Now, determine whether the following problem or activity can enable students to understand the concepts or skills in the provided description.

shot_info: fl_problem_001894_neg_0

HS_0
standard_description: Recognize area as an attribute of plane figures and understand concepts of area measurement.
problem_activity: Problem 4
Pre-unit
Find the number that makes each equation true.
\(8 \times 5 = \underline{\hspace{1cm}}\)
\(5 \times \underline{\hspace{1cm}} = 35\)
\( \underline{\hspace{1cm}} \times 2 = 18\)


aligns: no