Chapter 1

Lesson 1:

Determining Position

Set up your notesQuestions Answers

*** You will be taking notes in the “Answers” column. We will pause during class to have you practice filling out the “Questions” column.

2 Volunteers, please

V

olunteer 1: walk from location

A to location B• Class: Create directions to

describe that path.

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2 Volunteers, please

V

olunteer 2: walk from location

C to location B• Class: Create directions to

describe that path.

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What was wrong?

T

hose directions help the

volunteers to get to point B,

but not me!

Reference Points

A starting point used to describe

the position of an object.

Examples for this classroom?

Set up your notesQuestions Answers

What is a reference point?

2 volunteers walked from their seats to the door. These directions didn’t help Mrs. Craft to leave the room.

A starting point to describe the position of an object.

*** You will be taking notes in the “Answers” column. We will pause during class to have you practice filling out the “Questions” column.

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Set up your notesQuestions Answers

Why do we need a reference point?

What is a reference point?

2 volunteers walked from their seats to the door. These directions didn’t help Mrs. Craft to leave the room.

A starting point to describe the position of an object.

*** You will be taking notes in the “Answers” column. We will pause during class to have you practice filling out the “Questions” column.

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To describe a location

You must include 3 things in

your description:• reference point• direction from the reference

point• distance from the reference point

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Position as a Vector

VECTOR?

meet Vector...

Position as a Vector

A vector is a quantity that has both a direction and a size (magnitude).

Arrow = vector

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Position as a Vector

Red guy: Size = 2mDirection = Left

Blue guy:Size =Direction =

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What direction?

If we are traveling from Sacramento to San Diego, which direction(s) must we go?

What direction?

If we are traveling from Sacramento to San Diego, which direction(s) must we go?

Please Finish your Notes!Questions Answers

Why do we need a reference point?

What is a reference point?

2 volunteers walked from their seats to the door. These directions didn’t help Miss Titus to leave the room.

A starting point to describe the position of an object.

If you are STUCK: raise your hand and the class can help you to create a question.

Closing Activity

R

ead the 2 examples of directions that

describe how to get from my classroom to

the play structure.

P

ick the BEST example. Write down WHY it

is the best. Be specific.

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Write-To-Learn

R

emember:• Grammar and spelling don’t count• Focus on getting your thoughts on paper,

not making it perfect• Can use abbreviations, text talk, pictures,

symbols, etc.• You WILL be asked to share your thoughts

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Start from inside the

classroom and turn left as

you leave the door (going

outside). Walk for about 30

yards. You will see a wire

fence in front of you. Turn

left and walk for about 60

yards. The playground will

be on your left.

Go outside and head

East for 58 steps.

Then go North and

walk for about 100

steps. You will

probably see a lot of

children. Ask one of

them where to go.

Example 1 Example 2

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