few_shots: 
Example:
Concept/skill: 
Analyze and solve pairs of simultaneous linear equations.

Problem/activity:
Problem 1
The table below contains single equations in a single variable, single equations in two variables, and pairs of simultaneous equations in two variables. Check the appropriate box to show whether there is no solution, exactly 1 solution, or if there is an infinite number of solutions.
{"table": [{"_attributes": {"align": "center", "class": ["table", "table-bordered"], "style": "table-layout:fixed; width:70%"}, "tbody": [{"tr": [{"td": [{"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}, "strong": [{"_value": "No solution"}]}, {"_attributes": {"style": "text-align:center"}, "strong": [{"_value": "Exactly 1 solution"}]}, {"_attributes": {"style": "text-align:center"}, "strong": [{"_value": "Infinite number of solutions"}]}]}, {"td": [{"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${9=4x+7}$$"}]}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}]}, {"td": [{"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${y=3y+5}$$"}]}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}]}, {"td": [{"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${y={x\\over2}}$$"}]}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}]}, {"td": [{"p": [{"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${3x+6y-9=0}$$"}]}]}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}]}, {"td": [{"p": [{"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${x=y}$$"}]}, {"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${1.25x=1.25y}$$"}]}]}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}]}, {"td": [{"p": [{"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${9.9=6x+8y}$$"}]}, {"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${9x=2.5y-8.8}$$"}]}]}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}]}, {"td": [{"p": [{"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${11x-2y=1.5}$$"}]}, {"_attributes": {"style": "text-align:center"}, "span": [{"_attributes": {"class": ["math-tex"]}, "_value": "$${11x-2y=2.5}$$"}]}]}, {"_attributes": {"style": "text-align:center"}}, {"_attributes": {"style": "text-align:center"}}, {}]}]}]}]}
Problem 2
Kim has a small container and a large container as shown.
[IMG]
It takes 16 of the small containers to fill the large container. Three small containers leave 1.95 gallons of space in the big container.
What is the size of each of the two containers?


Answer: 
Yes. The last three rows of the table in the first problem involves solving pairs of simultaneous linear equations. The second word problem can also be represented as two simultaneous linear equations.

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

shot_info: fl_problem_001392_pos_0

8
standard_description: Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
problem_activity: Problem 1
Below are three angles,
$$\angle A$$
,
$$\angle B$$
and
$$\angle C$$
.
[IMG]
Which angle has the greatest measure? How do you know?
Problem 2
Estimate the measure of each angle in Anchor Task 1.
Using a 180° protractor, find the exact measure of each angle in Anchor Task 1.
Problem 3
Use a 180° protractor to find the measure of each angle in degrees.
{"table": [{"_attributes": {"class": ["table"], "style": "width: 100%;"}, "tbody": [{"tr": [{"td": [{"_attributes": {"style": "vertical-align: top;"}, "ol": [{"_attributes": {"start": "1", "style": "list-style-type: lower-roman;"}, "li": [{"p": [{}]}]}], "p": [{"_attributes": {"style": "margin-left: 40px;"}, "img": [{"_attributes": {"src": "https://d21royfkw9g4l6.cloudfront.net/Qz0c1pghJblJxPPnWMKvDA_8OLHZR.png"}}]}]}, {"_attributes": {"style": "vertical-align: top;"}, "ol": [{"_attributes": {"start": "2", "style": "list-style-type: lower-roman;"}, "li": [{"p": [{}]}]}], "p": [{"_attributes": {"style": "margin-left: 40px;"}, "img": [{"_attributes": {"src": "https://d21royfkw9g4l6.cloudfront.net/RokQx2LZhsF2CTQWAJkzyW_JH4LC6.png"}}]}]}]}, {"td": [{"_attributes": {"style": "vertical-align: top;"}, "ol": [{"_attributes": {"start": "3", "style": "list-style-type: lower-roman;"}, "li": [{"p": [{}]}]}], "p": [{"_attributes": {"style": "margin-left: 40px;"}, "img": [{"_attributes": {"src": "https://d21royfkw9g4l6.cloudfront.net/NLbOmHYZToXkxj9ilDgQH6_DXQEEI.png"}}]}]}, {"_attributes": {"style": "vertical-align: top;"}, "ol": [{"_attributes": {"start": "4", "style": "list-style-type: lower-roman;"}, "li": [{"p": [{}]}]}], "p": [{"_attributes": {"style": "margin-left: 40px;"}, "img": [{"_attributes": {"src": "https://d21royfkw9g4l6.cloudfront.net/hJ5Lr0W5n0ZLLZ0IDJqfdN_5ZB0NT.png"}}]}]}]}]}]}]}
Use a 180° protractor to measure the labeled angles in each figure.
[IMG]


aligns: no