STANDARD COMPUTATION FOR FRACTIONS YEARS 4-7 Students will

STANDARD COMPUTATION FOR FRACTIONS YEARS 4-7 Students will

STANDARD COMPUTATION FOR FRACTIONS YEARS 4-7 Students will require a sound understanding of fractions and related concepts such as equivalence prior to working with these computations. This presentation provides the structure (on the slides) and language (teacher notes below the slides) for developing each set of rules for the standard computational strategies with fractions. The Guide presents the view that efficiency, simplicity and accuracy are, from Year 5, keys to using standard computations. There are different computational strategies available for each of the four processes and students, through exposure to different models, will eventually adopt strategies that best suit them. However, it is appropriate for the most efficient computation (i.e. standard computation) for each of the 4 processes to be a key element of any school mathematics policy. * A separate presentation is available for the standard written algorithms across years 2, 3, 4. * A separate presentation is available for the standard written algorithms across years 4, 5, 6, 7. STANDARD ALGORITHMS 1.Add Fractions With Like Denominators Slides 3-5

2.Add Fractions With Unlike Denominators Slides 6-7 3.Subtract Fractions With Like Denominators Slides 8-9 4.Add and Subtract Fractions With Like Denominators Slide 10 5.Subtract Fractions With Unlike Denominators Slides 11-12 6.Multiply Whole Numbers by a Fraction or Mixed Numeral Slides 13-14

7.Multiply a Fraction by a Fraction or a Mixed Numeral by a Fraction Slides 15-17 8.Divide a Whole Number by a Fraction or a Mixed Numeral by a Fraction Slides 18- 20 9.Divide a Fraction by a Fraction or Mixed Numeral; or a Mixed Numeral by a Fraction Slides 21-22 10.Find the Percentage of a Whole Slide 23 1 2 +

1 2 = 2 2 =1 3 3+2 1 + 2 4 4

1+2 4 4 2 = 5+ 3 4 =5 3 4

3 5 + 4 5 + 4 5 = 11 5

1 =2 5 1 + 1 = 1+ 2 = 3 4 LCD 2 4 4 4 1 + 1 + 1 = 4 + 3 + 6 = 13 = 1 1 3 4 2 12 12 12 12

LCD 4 6 - 1 6 = 3 6 =

1 2 3 3-2 3 4 3-2 4 4 2 2 4 =

1+ 1 4 =1 1 4 3 5 3 5 -

4 5 + 2 5 + 2 5 = 5 5

- 4 5 = 1 5 3 - 1 = 6-5 = 1 10 5 LCD 2 10 10

3 1 4 13 4 - 2 - 8 3

LCD 12 2 3 = = 39 - 24 12 = 15 12

=1 =1 3 12 1 4 2 x 31 3 9=6 1

2 x 84 1 3 12 = 3 1 x 1 2 2 = 1 4 1

1 3 x 2 4 3 2 1 = 1 2 2 2 25 x 3

4 12 x 2 = 8 5 31 5 = 3 1 5 12 1 2

12 2 x 1 = 24 20 5 20 8 10 5

10 x 82 = 1 25 20 1 2 2 4

20 x 2 51 = 8 3 x 32 5 23 = 9

10 21 1 2 3 5 x 3 2 1 = 15 2 1 =7

2 10% of 60 x 1 10 x 100 10 1 6 60 = 6

Recently Viewed Presentations

  • Course Design Rachel Beane, Karen Kortz, Kathleen Surpless

    Course Design Rachel Beane, Karen Kortz, Kathleen Surpless

    Teams analyze earthquake, volcano, seafloor age, and topography data maps, then combine to draw plate boundaries and interpret processes. Google Earth. Each team analyzes different locations that show similar features (e.g., barrier islands, folds, valley glaciers, volcanic cones, etc.), then...
  • Slayt 1 - Selcuk Nas

    Slayt 1 - Selcuk Nas

    Meteorological Data. Details of Pilotage, Regulations and Port Facilities. Guides to major Port entry. worldwide coverage is provided in 74 volumes BA NOTICE TO MARINERS ADMIRALTY LIST OF LIGHTS AND FOG SIGNALS List of Lights Volume A (NP74) - British...
  • Year 12 Parent Information Evening - ASMS

    Year 12 Parent Information Evening - ASMS

    Special Tertiary Admissions Test (STAT) be aged 18 or over before 1st February for Semester 1 entry or 1st July for Semester 2 entry. Applications must be made through SATAC. UMAT. Undergraduate Medicine and Health Sciences Admissions Test
  • Secondary Reading Integrated Unit Using 2017 Standards

    Secondary Reading Integrated Unit Using 2017 Standards

    "Lineage" by Margaret Walker (poem) "I, Too"by Langston Hughes (poem) "The American Dream" by Margaret Kolozsvary (visual text/painting) "Be Free" by J. Cole (song) "Hollywood Dreams of Wealth, Youth, and Beauty" by Bob Mondello (CommonLit article) "The Gettysburg Address" by...
  • Hot Topics in Internet Law Jeanne Hamburg, Esq.

    Hot Topics in Internet Law Jeanne Hamburg, Esq.

    Consumer's positive review would be considered an "endorsement" under the Guides Advertisers may be liable for: False statements made through endorsements Unsubstantiated statements made through endorsements For failing to disclose material connections between themselves and their endorser Examples Example Skin...
  • Archaeological Dating Techniques

    Archaeological Dating Techniques

    ARCHAEOLOGICAL DATING TECHNIQUES ... by layer RELATIVE /ABSOLUTE RELATIVE DATING TECHNIQUES RELATIVE DATING SUPERPOSITION STRATIGRAPHY THE LAYERS OF TROY SERIATION Petrie's system of Seriation or Sequence Dating was developed in 1899. The system emphasises the relation of one find to...
  • ARGUMENTATIVE ESSAY - Weebly

    ARGUMENTATIVE ESSAY - Weebly

    ARGUMENTATIVE ESSAY Thesis Statement, Introduction, and Pro-Con Chart The Argumentative Thesis Statement The thesis statement should define the scope of the argument (in other words, the issue under discussion should be obvious) and make an assertion that is open to...
  • C75 Cryomodule Project Outline G. Ciovati for the

    C75 Cryomodule Project Outline G. Ciovati for the

    C75: a more efficient way to refurbish CMs. Preliminary Design Review on Jan 21st, 2016 endorsed the project. Minimal changes to current C50 module/process