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Circles

Circles

Assessment

Presentation

Mathematics

10th Grade

Practice Problem

Medium

Created by

Anna Cockrum

Used 25+ times

FREE Resource

11 Slides • 2 Questions

1



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2

Things you need for today:

  • A working mind (I know that's a lot to ask at this point in the year, but try your best)

  • your Hold My Thinking sheet

3


  • Think about a circle again

  • This time, try to move away from the dictionary definition you've grown to attached to

  • Make this circle more personal to you

4

Sketch your circle as you imagine it

Do this on your Hold My Thinking sheet

5

Make a straight line through your circle

Anywhere through your circle

6

Erase only the parts of the line that stick out from your circle

Keep any parts touching the outline or what's inside.

Just erase the sticky-outy bits

7

The segment you just drew is called a chord

Define chord for yourself on your sheet

8

Multiple Select

Based on your definition of chord, which of the following are examples of chords?

1
2
3
4
5

9

Did these examples follow your definition of what a chord is?

  • If "yes", that's great

  • If "not yet", then sketch an example of one off to the side and see how you can expand your definition and understanding

10

Open Ended

What are at least 2 things you notice about the image of your circle now? [remember that hitting the 'enter' key submits your answer rather than adding a new line of text]

11

Here is an example of an arc, define this word for yourself.

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12

A central angle is created using two radii, draw an example of this for yourself

13

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Does your central angle look similar to any of these?



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