## Reflection: Lesson Planning The graphs of logarithmic and exponential functions - Section 2: Bell work

When working with calculators or any technology you have to be careful when you have large numbers for x.  The table has a maximum number of places that it can show, when the value of the function is too small the calculator will round and students will assume the function exponential in this case can equal zero which is not true.

I like to discuss this issue with my students. I ask if computers have a limit on accuracy. It is always interesting to discuss how the computer chip designers use pi verify the accuracy and speed of a computer chip. Every time the media states that more digits of pi have been found tells me that a computer chip is more accurate.

Lesson Planning: Technology glitch

# The graphs of logarithmic and exponential functions

Unit 3: Exponential and Logarithmic functions
Lesson 1 of 11

## Big Idea: An understanding of the relationship between exponential and logarithmic functions is developed through analyzing graphs and identifying the domain, range, intercepts, asymptotes and end behavior of exponential and logarithmic functions.

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Standards:
Subject(s):
Math, exponential function, logarithmic function, Inverses, Graphing, asymptotes, end behavior, PreCalculus, exponential function, logarithmic functions, equation solving, Properties of Logarithm
43 minutes

### Katharine Sparks

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