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, assess whether the following problem or activity is 'aligned' with the given Common Core standard in Mathematics.

shot_info: fl_problem_001894_neg_0

HS_0
standard_description: Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.
Grade 3 expectations in this domain are limited to fractions with denominators 2, 3, 4, 6, and 8.
problem_activity: Narrative
The purpose of this What Do You Know About _____ is to invite students to share what they know about and how they can represent the number
\(\frac{1}{8}\)
.
Launch
Display the number.
“What do you know about
\(\frac{1}{8}\)
?”
1 minute: quiet think time
Activity
Record responses.
“How could we represent the number
\(\frac{1}{8}\)
?”
Student Facing
What do you know about
\(\frac{1}{8}\)
?
Student Response
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Activity Synthesis
“What connections do you see between different answers?”


aligns: yes