Doc: Monday Night SfL Numeracy

Direction: Fraction grids and subtraction layouts - boosting scores reliably.

    

Table of Contents

  1. Doc: Monday Night SfL Numeracy
  2. Aims:
  3. 2D Fraction Grids...
  4. Showing Your Working Out...
    1. Fractions as pure numbers...
    2. Fractions as Shaded Drawings
    3. When You Can Handle Numbers?
    4. Working With Drawings
    5. An Example 2D Grid?
    6. Another Example?
    7. Inventing A multiple Choice Version
    8. Benefits of Knowing Fraction Shapes
  5. 2D Fraction Shapes: Done!
  6. Next: Showing Your Working
    1. Does This Look Easy?
      1. Compared to this?
    2. Choose the First Number Carefully:
  7. Layout for Subtraction: Done!

Locations of assets

Additional comments:

Aims:

Get used to fractions in 2D grid form
Know why 2D grids test your understanding

Demonstrate careful working out
     - even when you know the answer?

2D Fraction Grids...

Justify the use of 2D grids for test questions
Suggest useful grid sizes for questions
Suggest areas to shade for easy questions
Suggest areas to shade for harder questions
Try to make up a multiple choice version

Showing Your Working Out...

Look at an example in number form
Try an example in word problem form
Know why it often helps

Additional note: time limited!

Fractions as pure numbers...

  • Often fractions are written as numbers.

If you know the rules of fractions...

  • You can compare different fractions
  • You can find the biggest or smallest
  • Decide which are the same (equivalent)
  • Can use them to speak or write information

Fractions as Shaded Drawings

With a drawing you can quickly see:
  • How many parts altogether
  • How many parts are shaded
But...
  • It might not be as easy to compare two shapes
  • Equivalent shapes might be hard to spot

When You Can Handle Numbers?

  • Definitely, you know the rules!
  • Maybe, you understand them, too?

Working With Drawings

  • Rules might not be enough
  • It helps to get used to the drawings!

An Example 2D Grid?

Space for drawing!

Another Example?

Space for drawing!

Inventing A multiple Choice Version

Space for drawing!

Benefits of Knowing Fraction Shapes

  • More confidence that you understand the idea.
  • Your memory of the idea will stay fresh and clear.

2D Fraction Shapes: Done!

Justified the use of 2D grids for test questions?
Suggested useful grid sizes for questions?
Suggest areas to shade for easy questions?
Suggest areas to shade for harder questions?
Try to make up a multiple choice version?

Next: Showing Your Working

Look at an example in number form
Try an example in word problem form
Know why it often helps.

Does This Look Easy?


                                  250
                                - 240
                               

Compared to this?


Price List January 2010
Item List Price Special Offer Price
8GB DAB MP3 Player 149 112

Question: How much cheaper is the Special Offer Price?

Choose the First Number Carefully:

Item List Price Special Offer Price
8GB DAB MP3 Player 149 112

Question: How much cheaper is the Special Offer Price?

Layout for Subtraction: Done!

Looked at a plain number example
Tried an word-based example
Listed Reasons Why It Might Help

Finished!