# data[].attributes.headline
What is the solution to the system of equations?

# data[].attributes.subject
What is the solution to the system of equations?

# data[].attributes.headline
What is the probability of flipping two heads?

# data[].attributes.subject
What is the probability of flipping two heads?

# data[].attributes.attachment_link.title
High-Quality Math Questions for Student Discourse

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CASE Strategies for Building Science Discourse Communities