Mississippi Math A-CED.2
The Standard
Create equations in two variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales. * [Note this standard appears in future courses with a slight variation in the standard language.]
2025 Mississippi College- and Career-Readiness Standards for Mathematics · Create Equations that Describe Numbers or Relationships
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students name two quantities that change together and write an equation linking them. They graph the equation with labeled axes and scales that fit the values.
What Mastery Looks Like
- A student can use a story or table to write an equation and plot points that satisfy it. They label each axis with its quantity and explain what a point means in the situation.
Common Misconceptions
- Students may leave a starting fee out of a cost equation or put the quantities on the wrong axes. Some use uneven intervals on an axis, making a correct equation look wrong.
How to Assess It
- Exit ticket: A gym charges $12 to join and $4 per visit. Write an equation for total cost after v visits, then graph 0 through 5 visits with labeled axes and a scale.
Lesson moves
Ways to Teach It
Give pairs five counters to model a $5 entry fee, then add two counters per ride; graph total cost and write its equation.
Ask, 'A tank starts with 10 liters and gains 3 liters each minute. What does the point (4, 22) mean?' Have students explain in writing.
Give pairs cards showing situations, equations, tables, and graphs; have them match each set and add any missing axis labels.
Give students a 24-square-foot garden bed; have them choose length-width pairs, write the area equation, and plot pairs on labeled axes.
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