Logarithm Properties

Free to teach as-is — the teacher guide, student handout, and slides are included.

Free — we'll email you an access link. Google Docs format.

Objective

I can use properties of logarithms to simplify and evaluate expressions.

Part 1 of 4

Warm-up video

Professor Dave Explains · 7:08Vetted channel

We don't generate video — this one is by Professor Dave Explains on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 4

Key concepts

3 concepts

  1. 1

    To solve exponential equations where the bases can be the same, express both sides with the same base and set the exponents equal.

  2. 2

    When solving logarithmic equations with multiple logs on one side, use the properties of logarithms to condense the expression into a single logarithm before solving.

  3. 3

    If you cannot get the same base on both sides of an exponential equation, take the natural log of both sides, use the power rule to bring the exponents to the front, and then isolate the variable.

Part 3 of 4

Practice

9 questions

1

Solve for x: 5ˣ = 25

2

Rewrite the equation log₃(9) = 2 in exponential form.

Part 4 of 4

Exit ticket

Quick comprehension check

Solve for x: log₂(x + 3) + log₂(x - 3) = 4

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

    Ready to present

We'll ask for your email to send your access link — nothing else.

Teaching a group at a different level?

Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.

Adapt This Lesson