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There's just something special about lines in algebra. Introduce your classes to linear equations by analyzing the linear relationship. Young mathematicians use input/output pairs to determine the slope and the slope-intercept formula to determine the y-intercept.
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CCSS:
Adaptable
Additional Tags
Instructional Ideas
- Use the provided examples to create a presentation that develops the idea of a linear function
- Use the practice problem set as board work to allow for quick checks of understanding
Classroom Considerations
- Learners may not understand why some examples are not linear; create input/output tables and analyze the patterns to help clarify
- The fourth in a 20-part series
Pros
- Emphasizes the vocabulary related to linear relationships
- Shows how to find slope conceptually by analyzing the pattern in the table
Cons
- When writing linear equations from a table, the resource does not give an example of a set of data that is nonlinear, which may lead pupils to believe all data will be linear
- Introduces the linear equation y = mx + b right away; does not give learners an opportunity to discover linear patterns in the data