Lesson 2.4.3: dividing radicals |
For this lesson there are 11 steps for you to take. Scroll down and do each step one-by-one. The instructions under each step will help clarify exactly what you need to do, so please read all the instructions.
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Here is the Lesson 2.4.3 Worksheet
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1.) Start Notes: Targets
Title your notes and write the targets listed below.
Title your notes and write the targets listed below.
- I can divide square roots and write the answer in simplest form.
- I can find the missing side length of right triangles when radicals are involved.
2.) Review: Simplifying Square Roots
This Khan Academy activity will make sure that you are ready for this lesson. You need to make sure you can simplify square roots before we learn how to divide square roots. Make sure you are signed in to Khan Academy while you work on this Activity. You need to get 5 right in a row before moving on.
CLICK HERE for the review activity.
This Khan Academy activity will make sure that you are ready for this lesson. You need to make sure you can simplify square roots before we learn how to divide square roots. Make sure you are signed in to Khan Academy while you work on this Activity. You need to get 5 right in a row before moving on.
CLICK HERE for the review activity.
4.) Video: Warm Up
(part 1) Watch this video to make sure you got the correct answer for the value of y. Also, I will talk about an important concept in this video, so please tune in. |
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6.) Video: Warm Up
(part 2) In this video I introduce the reason behind why we learn how to divide radicals. I will show you how I solved for x and then I will explain why my final answer is not quite correct. Uh oh, I made a mistake in this video. 14*3 does not equal 52... it equals 42. That will change the final answer for x. Watch the second video below to watch me correct his error. In this video I correct my error from the previous video. |
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8.) Video: Dividing Radicals Practice
Watch this video to see if we got the same answers to the practice problems. |
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9.) Notes: Triangle Practice
Now lets see if you can use what you learned so far to apply it to right triangles. Find all the missing side lengths of the following triangles. You might need to use the Pythagorean Theorem sometimes and proportions other times. Make sure to write the EXACT side length in simplest form. |
10.) Video: Triangle Practice
Watch this video to see if we got the same answers. |
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