Math 7

Unit 5 Operations with Fractions

Lesson 5.4 Using Models to Subtract Fractions

Focus

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

Use Pattern Blocks, fraction strips, and number lines to subtract fractions.

There isn’t a Focus activity in this lesson.

Grayscale Grids

Below are links to two documents that have grayscale grids.
These are grids that have been created at various shades of gray, from black down to light gray.
It can be very helpful to have a lighter grid to work on, so the lines are less distracting.
You can experiment with your personal preference as well as your printer to see what works best.
Once you find a page that works,  most printers will let you print copies of  just that page.

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

Demonstration

I’ve included this demonstration in case you want to use it for this lesson.

Explore

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

TEXT Page 191

Read/Work through the  Explore  section on Page 191 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.

You can do this on grid paper.
The key to the activity is deciding the size of your square grid.

Watch

Video Tutorial

Connect

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

TEXT Pages 191 - 192

Read/Work through the  Connect  section on Pages 191 - 192  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 192

Work through the Example  on Page 192 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 4,    I didn’t do a video for this one.
For part a
Subtract the numerators only.   
The denominator remains the same.

Question 10,    note!  for Part C,  I worked on it for a bit, also had my computer work on it,  the answer I came up with is the only answer.

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 5"}, {"Question 6", "Question 7", "Question 8", "Question 9", "Question 10"}, {"Question 11", "Question 12", , , }})