Introduction to Limits

Learning Resource Type

Classroom Resource

Subject Area

Mathematics

Grade(s)

9, 10, 11, 12

Overview

This video from Khan Academy on the CK-12 website will introduce students to the concept of limits by using two different functions as examples to demonstrate how to find the limits of a function.

Mathematics (2019) Grade(s): 09-12 - Precalculus

MA19.PRE.7

Determine numerically, algebraically, and graphically the limits of functions at specific values and at infinity.

UP:MA19.PRE.7

Vocabulary

  • Limit
  • Convergent
  • Divergent
  • Continuous function
  • Discontinuous function
  • Discontinuity (infinite, jump, removable)

Knowledge

Students know:
  • How to graph the families of functions.
  • How to factor, simplify, and rationalize functions.
  • How to evaluate functions at a given input value.

Skills

Students are able to:
  • Identify continuity and discontinuity (if discontinuous, identify the type).
  • Calculate limits.

Understanding

Students understand that:
  • Functions have various types of continuity and discontinuity.
  • That limits can be determined numerically, graphically, and algebraically.
  • converging means that a limit exists, while diverging means that a limit does not exist.
Mathematics (2019) Grade(s): 09-12 - Precalculus

MA19.PRE.24

Compare and contrast families of functions and their representations algebraically, graphically, numerically, and verbally in terms of their key features. Note: Key features include intercepts; intervals where the function is increasing, decreasing, positive, or negative; maximums and minimums; symmetries (including even and odd); end behavior; asymptotes; and periodicity. Families of functions include but are not limited to linear, quadratic, polynomial, exponential, logarithmic, absolute value, radical, rational, piecewise, trigonometric, and their inverses.

UP:MA19.PRE.24

Vocabulary

  • Function
  • Relative Maximum
  • Relative Minimum
  • Symmetry (Even/Odd)
  • End Behavior
  • Asymptotes
  • Intercepts
  • Increasing/Decreasing Intervals
  • Periodicity
  • Absolute Maximum
  • Absolute Minimum

Knowledge

Students know:
  • Properties of functions and make connections between different representations of the same function

Skills

Students are able to:
  • Compare properties of functions when represented in different ways (algebraically, graphically, numerically in tables or by verbal descriptions).

Understanding

Students understand that:
  • Each representation provides a unique perspective of the function.
  • Different representations are most appropriate for revealing certain key features of the function

CR Resource Type

Audio/Video

Resource Provider

CK-12

License Type

Custom

Accessibility

Video resources: includes closed captioning or subtitles
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