What are Logarithms?

Objective:

I can convert between logarithmic and exponential forms in order to evaluate logarithmic expressions and solve logarithmic equations.

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Logarithms are the inverse of exponential functions. We are going to see how we can rewrite an exponential expression to answer a different question – instead of “what is 2 raised to the third power?” we can ask (and answer!) “2 raised to what power equals 8?” This flip in thinking will guide us through our unit on logarithms!

Lesson Steps:

On this webpage, you will find everything you need for the lesson! It will be laid out in the order that you should work through them to best facilitate mastery for this lesson. Each title will also jump you to that part of the page for quick navigation!

• Watch video and take notes
  • Participation in the EdPuzzle will be required for your grade! Make sure to login using your Google login to the correct class period’s video in order to earn credit for your EdPuzzle participation!!!
• Complete the independent practice
  • This will usually be on DeltaMath, but sometimes MathXL or another program
• Come see me to receive mastery check

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Watch Video & Take Notes:

• As you watch the video, copy down the notes in to the unit packet you received at the beginning of the unit.
• You only need to complete the parts of the notes that I complete in the video
• Any other problems/notes that are skipped in the video can be skipped by you.
  • I will have a completed set of notes in a binder if you don’t like the missing/blank areas. You can simply copy down the missing parts, or you can try the problems yourself first and then use the copy in the binder to check your work. Whatever you need.
  • Again, you can just leave it blank! The above options are just if you’d like the extra practice, you’ve been told to go back and do the extra practice to be eligible for a revision on a mastery check, or simply if you want to do them so your notes are complete.

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Independent Practice:

• Go to www.DeltaMath.com and independently complete practice ~ 10.1 – What is a Logarithm?

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Mastery Check:

• You may ask for your mastery check if you have completed:
  • All notes for this lesson
  • All practice for this lesson
• If both requirements are done, bring your lesson practice page and come ask me for the mastery check. You will need a pencil or pen.

Reminders about Mastery Checks:

• No phones or computers are allowed. Set your playlist on your earbuds prior to asking for the mastery check (if you want/need)
• Calculators are allowed on mastery checks.
• Notes may be allowed on some mastery checks – I will let you know which. More likely, I will have any important formulas posted so you don’t need your notes.
• Mastery checks can only be completed at the designated table.

Once Done with a Mastery Check…

• Turn in to your class period’s bin
• Continue on to the next lesson until you find out if your mastery check was correct or if it needs to be revised
  • Does your name move to the next column? Congratulations! Mark that on the lesson practice page as mastered and continue working through the next lesson!
  • Does your name end up highlighted in orange? Don’t despair! Follow the steps below.

If You Need to Revise

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