Math 7

Unit 8 Geometry

Lesson 8.5   Graphing on a Coordinate Grid

Coordinate Grids

There are a few things to cover BEFORE we actually get into the lesson.

You will be doing LOTS of graphing for the next lessons, so you will want to have grid paper handy to do that.

THIS WEBSITE is an online grid paper creator that you can use if you like.

The link below is to a 1 - cm grid paper document you can download and print.

1 - cm grid paper   LINK

Below, links to two different files with different numbers of squares.
You can download and print these to use for the work in this class.
I’ve created the grids at different levels of black, so you can print the one that you think is the easiest to use.

NOTE!   If you work with these grids and feel like you would prefer a different size, different size squares, etc.,  LET ME KNOW!
I can easily create a document with grids of different sizes if that would help you with your work in math class.

I would recommend printing a bunch of copies to have on hand for your work in math class.

15 x 20 squares   LINK

25 x 30 squares    LINK

Video Tutorial

Focus

The FOCUS section introduces the main concept that will be covered in the lesson.

Identify and plot points in four quadrants of a coordinate grid.

TEXT Page 315

Read/Work through the  Focus  section at the top of page 315 in  your textbook.

Watch

Video Tutorial

Explore

Explore an idea or problem.
The exploration provides the background for the ideas presented in the lesson.

TEXT Page 315

Read/Work through the  Explore  section on Page 315 in your textbook.

You can do this activity on your own.
Do your best to answer the questions, then watch the Video Tutorial for help or to check your answers.

Watch

Video Tutorial

Demonstration

This demonstration lets you move a point around on a coordinate grid and practice identifying the location of the point.

Desmos

A fantastic online graphing calculator,  you can input the coordinates of points and practice your graphing skills.

Desmos    LINK

Connect

Connect summarizes the math in the lesson.
A presentation of ideas connected to the lesson focus.

TEXT Page 316

Read/Work through the  Connect  section on Page 316 in your textbook.

Even if you KNOW you are going to watch the video, READING this section is still important.

Getting the same information in multiple ways can help with understanding.

Watch

Video Tutorial

Example

The Example will give you TOOLS for solving problems, and also show you that there may be different ways to approach a question.

Example

TEXT Page 317

Work through the Example  on Page 317 in your textbook.

Watch

Video Tutorial

Practice Problems

Doing Practice Problems

Practice problems reinforce the math presented in this lesson.

•	Work through the practice problems for this lesson.
	These problems are for practice, you don’t need to hand them in!
	(your teacher may assign specific questions for you to complete)

•	Use the answers in the back of the book to CHECK YOUR WORK!

•	If you make a mistake, TRY TO FIX IT!

•	If you need help or want more information, view the video solutions provided.

•	If you still need more help,  CONTACT YOUR TEACHER!

Types of Practice Problems

Assessment Focus a question that gives a good example of the kind of question you would be expected to answer after completing the lesson

Take It Further questions offer enrichment and extension.

Notes

Question 3,   HERE is a link to the page with the plotted points.

Question 6,    I didn’t do a video for this one.
Below is the design  you would get if you plot the points correctly.

pts= {{0,5}, {-1,4}, {-1,3}, {-2,3}, {-3,2}, {-2,1}, {-1,1}, {-1,0}, {0, -1}, {1,0}, {1,1}, {2,1}, {3,2}, {2,3}, {1,3}, {1,4}, {0,5}};
Graphics[{
{Red,PointSize[0.011],Point/@pts},
{Blue, Thick,Line[pts]}},
GridLines->gridlines10,
GridLinesStyle->Opacity[0.1],
PlotRange->plotrange10,
Axes->True,
ImageSize->400, AxesStyle->Opacity[0.1]]

Question 7,    HERE is a link to the page with the points to plot to create Bugs Bunny
If you create your own design, I am sure your teacher would appreciate seeing what you come up with.

Question 9,    I didn’t do a video for this one.

Video Solution Links

Check your work for every problem you do!
If you make a mistake,  try to fix it!
Use the video solutions for more information.
If a problem still doesn’t make sense, ASK YOUR TEACHER FOR HELP!

({{"Question 1", "Question 2", "Question 3", "Question 4", "Question 5"}, { , "Question 7", "Question 8",  , "Question 10"}, {"Question 11", "Question 12", "Question 13", , }})