Doug Doblar
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Numbers - Fractions

The sequence of lessons below are for the 4th grade Numbers - Fractions strand for Georgia 4th grade, which is closely aligned to the Common Core.
Click here to access this strand as a YouTube playlist

Modeling A Fraction As A Sum of Unit Fractions
1_-_modeling_a_fraction_as_a_sum_of_unit_fractions.pdf
File Size: 285 kb
File Type: pdf
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Decomposing Fractions Into Sums Other Than Unit Fractions
2_-_decomposing_fractions_into_sums_other_than_unit_fractions.pdf
File Size: 388 kb
File Type: pdf
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Modeling the Addition of Fractions
3_-_modeling_the_addition_of_fractions.pdf
File Size: 447 kb
File Type: pdf
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Modeling the Subtraction of Fractions
4_-_modeling_the_subtraction_of_fractions.pdf
File Size: 393 kb
File Type: pdf
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Modeling Fraction Addition and Subtraction With Number Lines
4b_add_and_subtract_fractions_w_number_line.pdf
File Size: 617 kb
File Type: pdf
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Adding Mixed Numbers
5_-_adding_mixed_numbers.pdf
File Size: 461 kb
File Type: pdf
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Adding Mixed Numbers Using Number Lines
6_-_adding_mixed_numbers_with_number_line.pdf
File Size: 353 kb
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Subtracting Mixed Numbers When Regrouping Is Not Needed
7_-_subtracting_mixed_numbers_when_regrouping_is_not_necessary.pdf
File Size: 483 kb
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Subtracting Mixed Numbers When Regrouping is Necessary
8_-_subtracting_mixed_numbers_when_regrouping_is_needed.pdf
File Size: 438 kb
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Subtracting Mixed Numbers - Number Line Strategy
9_-_subtracting_mixed_numbers_-_number_line_strategy.pdf
File Size: 459 kb
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Adding and Subtracting Mixed Numbers - Improper Fractions Strategy
10_-_adding_and_subtracting_mixed_numbers_-_improper_fraction_strategy.pdf
File Size: 378 kb
File Type: pdf
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Multi-Step Add/Subtract Fractions Problems
11_-_multi-step_problems.pdf
File Size: 818 kb
File Type: pdf
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Equivalent Fractions Strategy #1 - Fraction Bars
1_-_equivalent_fractions_strat_1_-_fraction_bars.pdf
File Size: 269 kb
File Type: pdf
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Equivalent Fractions Strategy #2 - Partitioned Drawings
2_-_equivalent_fractions_strat_2_-_partitioned_drawings.pdf
File Size: 321 kb
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Equivalent Fractions Strategy #3 - Fraction Circles
3_-_equivalent_fractions_strat_3_-_fraction_circles.pdf
File Size: 374 kb
File Type: pdf
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Equivalent Fractions Strategy #4 - Set Models
4__word__-_equivalent_fractions_strategy_4_-_set_models.pdf
File Size: 554 kb
File Type: pdf
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Equivalent Fractions Strategy #5 - Number Lines
5_-_equivalent_fractions_strat_5_-_number_lines.pdf
File Size: 367 kb
File Type: pdf
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Comparing Fractions With Bars, Circles, and Numbe Lines
6_-_comparing_fractions_using_bars_circles_and_number_lines.pdf
File Size: 402 kb
File Type: pdf
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Comparing Fractions By Changing One Denominator
7_-_comparing_fractions_by_changing_one_fraction.pdf
File Size: 359 kb
File Type: pdf
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Comparing Fractions When Both Fractions Must Be Changed
8_-_comparing_fractions_when_both_fractions_must_be_changed.pdf
File Size: 364 kb
File Type: pdf
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Comparing Fractions Using A Benchmark
9_-_comparing_fractions_by_comparing_to_a_benchmark.pdf
File Size: 257 kb
File Type: pdf
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Comparing Fractions With the Same Numerator or Denominator
10_-_comparing_fractions_with_same_numerator_or_denominator.pdf
File Size: 510 kb
File Type: pdf
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Fraction Comparisons That Don't Make Sense
10_-_fraction_comparisons_that_dont_make_sense.pdf
File Size: 603 kb
File Type: pdf
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Whole Number x Fraction Strategy #1 - Visual Model
I don't have a video for this strategy because it was always the first topic after winter break.  Sorry!
1_-_whole_x_fraction_strat_1_-_area_model.pdf
File Size: 601 kb
File Type: pdf
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Whole Number x Fraction Strategy #2 - Number Line
2_-_whole_x_fraction_strat_2_-_numer_line.pdf
File Size: 472 kb
File Type: pdf
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Whole Number x Fraction Strategy #3 - Repeated Addition
3_-_whole_x_fraction_strat_3_-_repeated_addition.pdf
File Size: 496 kb
File Type: pdf
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Naming and Modeling Multiples of Unit Fractions
4_-_naming_and_modeling_multiples_of_unit_fractions.pdf
File Size: 924 kb
File Type: pdf
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Representing and Using Number Lines With Multiples of Unit Fractions
5_-_representing_and_using_multiples_of_unit_fractions_using_a_number_line.pdf
File Size: 953 kb
File Type: pdf
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Seeing Different Fraction Multiplication Problems In Models and Situations
5b_-_seeing_different_multiplication_problems.pdf
File Size: 516 kb
File Type: pdf
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Using Unit Fractions to Solve Problems Involving Other Fractions
6_-_using_unit_fractions_to_solve_problems_involving_other_fractions.pdf
File Size: 655 kb
File Type: pdf
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Using Unit Fractions to Solve Fraction Multiplication Problems Strategy #2 - Visual Models
7_-_using_unit_fractions_to_solve_problems_strategy_2_-_visual.pdf
File Size: 696 kb
File Type: pdf
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Finding a Fraction of a Group or Set Strategy #1 - Visual Models
9_-_finding_a_fraction_of_a_group_or_set_strat_1_-_visual_model.pdf
File Size: 558 kb
File Type: pdf
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Finding A Fraction of A Group or Set Strategy #2 - Number Line
10_-_finding_a_fraction_of_a_group_or_set_strat_2_-_number_line.pdf
File Size: 437 kb
File Type: pdf
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Finding A Fraction of A Group or Set Strategy #3 - Multiply
11_-_finding_a_fraction_of_a_group_or_set_strat_3_-_multiplying.pdf
File Size: 466 kb
File Type: pdf
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Changing A Fraction With A Denominator of 10 Into One With A Denominator of 100
1_-_changing_a_fraction_with_a_denominator_of_10_into_an_equivalent_fraction_with_a_denominator_of_100.pdf
File Size: 693 kb
File Type: pdf
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Adding A Fraction With A Denominator of 10 to One With A Denominator of 100
2_-_adding_a_fraction_with_a_denominator_of_10_to_a_fraction_with_a_denominator_of_100.pdf
File Size: 955 kb
File Type: pdf
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Representing A Fraction With a Denominator of 10 or 100 Using a Decimal
3_-_representing_a_fraction_with_a_denominator_of_10_or_100_using_a_decimal.pdf
File Size: 960 kb
File Type: pdf
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Decimals In Expanded Form
4_-_decimals_in_expanded_form.pdf
File Size: 419 kb
File Type: pdf
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Representing Decimals With Base 10 Blocks and Hundreds Charts
5_-_representing_decimals_with_base_10_blocks_and_hundreds_charts.pdf
File Size: 562 kb
File Type: pdf
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Representing 10th Decimals on a Number Line
6_-_representing_tenth-decimals_on_the_number_line.pdf
File Size: 428 kb
File Type: pdf
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Representing 100th Decimals On A Number Line
7_-_representing_100th_decimals_on_a_number_line.pdf
File Size: 496 kb
File Type: pdf
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Comparing Decimals
8_-_comparing_decimals.pdf
File Size: 723 kb
File Type: pdf
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Ordering Decimals
9_-_ordering_decimals_from_least_to_greatest.pdf
File Size: 635 kb
File Type: pdf
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  • Home
  • Math Videos
    • 4th Grade Math >
      • Numbers - Base 10
      • Operations and Algebraic Thinking
      • Numbers - Fractions
      • Geometry
      • Measurement and Data
    • 6th Grade Math >
      • Number System (6th)
      • Ratios and Proportional Thinking (6th)
      • Expressions and Equations (6th)
      • Geometry (6th)
      • Statistics and Probability (6th)
    • 7th Grade Math >
      • Ratios-Rates-Proportions-7th
      • Expressions and Equations (7th)
      • Number System (7th)
      • Geometry (7th)
      • Statistics and Probability (7th)
    • 8th Grade Math >
      • Number System (8th)
      • Expressions and Equations (8th)
      • Functions (8th)
      • Geometry (8th)
      • Statistics and Probability (8th)
  • Blog Topics
    • Thinking Classroom
    • Leaning Into Science and Engineering
    • Classroom Practices
    • Classroom Stories
    • Ideas and Opinions
    • Pandemic-Related Issues
  • About
  • Now