Reflection: Discourse and Questioning Logarithms - Section 1: Warm-up


Using a "row game" instead of a worksheet can be helpful for skill-building.  This method works well when it is possible to write two very different questions that have the same answer.

In a "row game" two students work on one worksheet that has two columns.  The answer to #1 in column A is the same as the answer to #1 in column B, so students can check answers after each question.  Asking students to practice this way instead of both doing the same worksheet has multiple benefits:

  1. It helps students see that many expressions can be equivalent even though they initially look very different [MP7].
  2. It helps students develop viable arguments because they try to convince each other that theirs is the correct answer [MP3]
  3. Students find the "game" aspect of it engaging, which helps them persevere through difficult tasks [MP1]

  Row Games
  Discourse and Questioning: Row Games
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Unit 2: Exponential Functions
Lesson 3 of 11

Objective: SWBAT evaluate logarithms and understand the inverse relationship between logarithms and exponential expressions.

Big Idea: Logarithms are exponents! To evaluate a logarithmic expression, we ask "what exponent do we put on this number to get that number?"

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Math, logarithms, Algebra, Exponents and Exponential Functions, exponential equations, exponential expressions, Inverse, inverse operations
  85 minutes
screen shot 2015 07 04 at 2 08 26 pm
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