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A Trip to the Beach [04:58]
Absolute Deviation and Mean Absolute Deviation [04:41]
Absolute Value [03:04]
Adding & Subtracting Fractions With Equal Denominators [05:50]
Adding & Subtracting Mixed Numbers by Conversion to Improper Fractions [04:31]
Adding & Subtracting Mixed Numbers Using the Number Line [05:22]
Adding and Subtracting Mixed Numbers Using Visual Models [05:40]
Adding and Subtracting Mixed Numbers [03:49]
Adding and Subtracting Numbers in Scientific Notation (Part 1) [02:53]
Adding and Subtracting Numbers in Scientific Notation (Part 2) [02:25]
Adding and Subtracting Rational Numbers [02:52]
Adding Decimals Using a (10x10) Grid [04:39]
Adding Fractions Using Area Models (Example) [02:08]
Adding Fractions Using Area Models [04:16]
Adding Fractions Using Visual Models [04:25]
Adding Fractions with Equal Denominators on the Number Line [02:46]
Adding Fractions With Equal Denominators Using Area Models [04:03]
Adding Multi-Digit Whole Numbers (Example) [02:22]
Adding Multi-Digit Whole Numbers [02:12]
Adding Odd and Even Numbers (Part 1) [02:05]
Adding Odd and Even Numbers (Part 2) [03:51]
Adding Zeros to Decimals [00:10]
Addition Using Base-Ten Blocks (Example) [02:18]
Addition Using Base-Ten Blocks [03:09]
Addition Using Place Value Chart (Example) [01:38]
Addition Using Place Value Chart [02:32]
Angle Properties in Triangles [03:01]
Angles and Degrees [03:14]
Angles in Parallelograms [03:40]
Angles in Two-Dimensional Figures [03:18]
Angles [03:25]
Applying the Distributive Property Using Area Models (Part 1) [03:21]
Applying the Distributive Property Using Area Models (Part 2) [01:29]
Area of a Parallelogram [03:27]
Area of a Right Triangle [02:27]
Area of Triangles [02:30]
Associativity and Multiplication Problems (Part 1) [01:51]
Associativity and Multiplication Problems (Part 2) [02:16]
Baking Cakes [05:59]
Balancing Equations and Properties of Equality (Part 1) [04:07]
Balancing Equations and Properties of Equality (Part 2) [02:12]
Base-Ten Numerals [05:04]
Benchmark Fractions [07:26]
Book Pages [03:03]
Box Plots [03:21]
Bread and Cake (Advanced) [09:29]
Breaking Down Fractions into Sum of Parts [04:10]
Breaking Shapes into Equal Parts [02:42]
Building Fractions Using the Number Line [03:25]
Building Fractions with Visual Models [03:31]
Burgers and Shakes [03:04]
Bus Trip (Part 1) [01:34]
Bus Trip (Part 2) [02:28]
Butterfly Wings [06:34]
Buying Erasers [02:04]
Calculating and Understanding the Mean [03:30]
Candy Pieces [01:34]
Candy Shop [01:53]
Car Tires [02:44]
Charity Jars (Part 1) [04:41]
Charity Jars (Part 2) [02:18]
Checking Quotients Using Multiplication (Part 2) [02:36]
Chocolate Boxes [04:22]
Classifying Polygons Based On Parallel & Perpendicular Lines [02:58]
Classifying Polygons Based on Parallel Lines [03:24]
Classifying Quadrilaterals Based on Parallel Sides [04:54]
Classifying Triangles Based On Angle Properties [03:36]
Classifying Triangles Based on Sides' Length [04:09]
Colored Tiles [04:10]
Coloring Pencils (Part 1) [02:53]
Coloring Pencils (Part 2) [02:16]
Combining Like Terms 1 [02:41]
Combining Like Terms 2 [03:17]
Comparing Fractions Using Area Models [03:45]
Comparing Fractions Using Area Models [02:53]
Comparing Fractions with Equal Numerators on the Number Line [03:08]
Comparing Fractions with Equal Numerators [03:07]
Comparing Graphs and Equations Representing Proportional Relationships (Example) [02:44]
Comparing Graphs and Equations Representing Proportional Relationships [04:17]
Comparing Numbers in Scientific Notation (Example) [03:07]
Comparing Numbers in Scientific Notation [02:48]
Comparing Numerical Expressions [03:33]
Comparing Rational Numbers in the Real World [03:36]
Comparing Whole Numbers in Base-Ten Numerals (Example) [03:05]
Comparing Whole Numbers in Base-Ten Numerals [02:11]
Comparing Whole Numbers in Words (Example) [01:56]
Comparing Whole Numbers in Words [02:15]
Comparing Whole Numbers [05:47]
Composite Numbers [05:31]
Constant of Proportionality [04:07]
Constant Speed [02:13]
Converting Between Fahrenheit and Celsius (Part 1) [02:29]
Converting Between Fahrenheit and Celsius (Part 2) [01:50]
Converting Between Measurements [03:10]
Converting Distance Using Ratio Reasoning (Part 1) [03:52]
Converting Distance Using Ratio Reasoning (Part 2) [03:00]
Converting Fractions with Denominator Ten to Hundred [04:50]
Converting Improper Fractions to Mixed Numbers [04:22]
Converting Measurements [05:36]
Converting Mixed Numbers to Improper Fractions [03:15]
Converting Rational Numbers to Decimals [02:09]
Counting Minutes (Example) [02:04]
Counting Minutes [03:12]
Creating a Grouped Frequency Table [04:16]
Cross-Reducing (Example) [03:11]
Cross-Reducing [04:10]
Cupcakes [02:02]
Decimals and Decimal Points [08:37]
Describing Data (Part 1) [02:21]
Describing Data (Part 2) [03:46]
Describing Data Distributions from Graphed Data (Example) [02:34]
Describing Data Distributions from Graphed Data [03:30]
Digits and Place Value (Part 1) [03:37]
Digits and Place Value (Part 2) [02:35]
Distance Between Points on a Coordinate Plane [02:31]
Distributive Property and Factoring [03:51]
Distributive Property and the Area of Rectangles [03:42]
Distributive Property as a Rule [02:44]
Dividing a Decimal by a Two-Digit Decimal (Part 1) [02:44]
Dividing a Decimal by a Two-Digit Decimal (Part 2) [05:14]
Dividing a Decimal by a Whole Number [06:22]
Dividing a Unit Fraction by a Whole Number Using the Number Line [03:23]
Dividing a Whole Number by a Unit Fraction [03:45]
Dividing Decimals by Powers of Ten (Part 1) [04:32]
Dividing Decimals by Powers of Ten (Part 2) [02:12]
Dividing Decimals by Whole Numbers Using Visual Models (Example) [02:17]
Dividing Decimals by Whole Numbers Using Visual Models [04:22]
Dividing Decimals Using the Number Line (Example) [02:40]
Dividing Decimals Using the Number Line [03:20]
Dividing Decimals [04:42]
Dividing Fractions by Fractions Using a Number Line [02:18]
Dividing Fractions by Whole Numbers Using Visual Models [02:34]
Dividing Mixed Numbers [03:01]
Dividing Numbers in Scientific Notation (Example) [01:14]
Dividing Numbers in Scientific Notation [04:02]
Dividing One Term Expressions (Example) [02:01]
Dividing One Term Expressions [02:57]
Dividing Pizza [02:44]
Dividing Two Whole Numbers Yielding a Decimal Quotient [03:44]
Dividing Unit Fraction by a Whole Number Using Visual Models [03:33]
Dividing Whole Numbers by Fractions Using a Number Line [02:17]
Dividing Whole Numbers by Fractions [03:53]
Divisibility for Factors and Multiples [03:06]
Divisibility Rules for 2 [01:42]
Divisibility Rules for 3 and 9 [03:00]
Divisibility Rules for 5 and 10 [02:36]
Divisibility Rules for 6 [02:15]
Division and Properties of Operations [02:54]
Division Using Arrays (Example) [01:49]
Division Using Arrays [04:01]
Division Using Multiplication Table [03:53]
Division Using Repeated Subtraction [06:18]
Division Using the Multiplication Table (Part 1) [02:38]
Division, Multiplication and Subtraction [09:23]
Door Opening [06:08]
Drawing Detailed Bar Graphs [04:24]
Equations to Represent Proportional Relationships [03:03]
Equivalent Fractions Using Area Models [02:12]
Equivalent Fractions Using the Number Line copy [02:15]
Equivalent Fractions Using the Number Line [03:38]
Equivalent Fractions Using Visual Models [03:30]
Equivalent Fractions [05:19]
Evaluating Algebraic Expressions [03:01]
Evaluating Expressions with Integers [03:44]
Evaluating Multiplication Expressions Using Properties [02:43]
Even and Odd Numbers [03:11]
Expanded Form and Exponential Notation [04:11]
Exploring the Division of Rational Numbers [03:56]
Exponents in Word Form [02:15]
Expressing Measurements in Larger Units [04:59]
Expressing Numbers in Scientific Notation (Part 1) [05:05]
Expressing Numbers in Scientific Notation (Part 2) [04:24]
Expressing Whole Numbers as Fractions Using the Number Line (Part 2) [01:58]
Factoring and the Distributive Property (Example) [01:36]
Factoring and the Distributive Property [02:16]
Factoring out the GCF (Example) [01:24]
Factoring out the GCF [03:02]
Farm Fence [03:33]
Feeding Mice [07:37]
Finding a Percent Using the Percent Proportion [02:27]
Finding a Whole Using the Percent Proportion [02:28]
Finding Area of Shapes Using Square Tiles [02:18]
Finding Errors in Adding and Subtracting Fractions (Part 1) [01:01]
Finding Errors in Adding and Subtracting Fractions (Part 2) [02:29]
Finding Errors in Division Problems Where the Answer is a Fraction (Part 1) [02:58]
Finding Errors in Division Problems Where the Answer is a Fraction (Part 2) [04:32]
Finding Factor Pairs Using Area Models [05:47]
Finding Missing Side Lengths [03:14]
Finding Mistakes in Evaluations of Algebraic Expressions [02:20]
Finding Multiples Using Area Models [04:48]
Finding Sides’ Lengths on a Grid [02:48]
Finding the Area of a Rectangle Using the Area Formula [03:47]
Finding the Error in Adding Fractions [03:47]
Finding the Error in Subtracting Fractions [02:50]
Finding the Error in Unit Conversions [05:40]
Finding the Product Using the Multiplication Table [02:51]
Finding the Unknown Sides' Lengths [03:24]
Fitness Trail [02:29]
Fractions & Unit Fractions Number Line [03:58]
Fractions and Division (Part 1) [03:10]
Fractions and Division (Part 2) [03:36]
Fractions as a Sum of Parts on the Number Line [04:00]
Fractions as a Sum of Parts Using Area Models [03:49]
Frequency Table and Dot Plots [03:23]
Fundraiser [02:07]
Gavin's Pool [02:47]
Generating Equivalent Fractions (Part 1) [03:31]
Generating Equivalent Fractions (Part 2) [03:01]
Generating Equivalent Fractions Using Area Models [02:36]
Generating Equivalent Fractions Using The Number Line [05:10]
Geometric Figures on the Coordinate Plane [06:15]
Geometric Properties to Find the Perimeter of Plane Figures (Part 1) [01:44]
Geometric Properties to Find the Perimeter of Plane Figures (Part 2) [01:48]
Geometry Town [05:33]
Going Fishing [02:32]
Graphing an Inequality Solution on a Number Line (Part 1) [03:00]
Graphing an Inequality Solution on a Number Line (Part 2) [02:55]
Graphing on a Coordinate Plane [03:40]
Graphing Points on a Coordinate Plane [03:13]
Graphing Points to Create a Map [05:28]
Graphing Proportional Relationships (Part 1) [03:28]
Graphing Proportional Relationships (Part 2) [02:05]
Graphs for Patterns [06:21]
Greatest Common Factor [04:15]
Gym Membership [03:30]
Histograms [02:43]
Horse Barn (Part 1) [01:56]
Horse Barn (Part 2) [01:53]
How Many Bottles [02:28]
How Tall [07:57]
Howard's Apartment [02:57]
Identifying Dependent and Independent Variables (Example) [02:08]
Identifying Dependent and Independent Variables [03:15]
Identifying Equivalent Expressions (Example) [01:15]
Identifying Equivalent Expressions [02:35]
Identifying Parallel & Perpendicular Lines In 2 Dimensional Figures [03:06]
Identifying Parts of Expressions (Example) [01:52]
Inequality Symbols (Part 1) [02:53]
Inequality Symbols (Part 2) [02:40]
Interpreting Fractions of a Whole [01:49]
Interpreting Scientific Notation Generated by Technology [03:33]
Irrational Numbers [02:56]
Jamal's Family Trip (Part 1) [03:53]
Jamal's Family Trip (Part 2) [02:20]
Jim's Family [01:42]
Joining Angles [04:16]
Kayla's Coins [02:51]
Least Common Multiple [02:02]
Leftover Pizza [03:10]
Length Conversion in the Laboratory [05:49]
A Dinner Bill [06:24]
A Painter's Canvas (Part 1) [04:05]
A Painter's Canvas (Part 2) [03:53]
Adding and Subtracting Mixed Numbers Using Visual Models [05:40]
Adding decimals (Example) [02:23]
Adding Decimals Using a Number Line [04:09]
Adding Decimals [03:53]
Adding Fractions Using the Number Line (Part 1) [02:15]
Adding Fractions Using the Number Line (Part 2) [03:34]
Adding Fractions with Denominators 10 and 100 [02:28]
Adding Fractions with Equal Denominators [05:56]
Adding Fractions [04:20]
Adding Leading and Trailing Zeros [06:38]
Adding the number 10 to the mulplicaiton table [04:28]
Adding Zeros When Dividing Decimals by Powers of 10 [02:09]
Addition of Multi-Digit Whole Numbers (Part 1) [02:57]
Addition of Multi-Digit Whole Numbers (Part 2) [01:42]
Addition Properties (Part 1) [00:15]
Addition Properties (Part 2) [02:40]
Associative Property of Multiplication [03:24]
Bears and Fish [01:41]
Building Fractions with Visual Models [03:31]
Candy Shop [01:53]
Car Race [02:33]
Categories of Quadrilaterals (Part 1) [02:43]
Categories of Quadrilaterals (Part 2) [04:37]
Cereal Box [02:55]
Characteristics of Elements in Patterns [03:32]
Checking Quotients Using Multiplication (Part 1) [04:14]
Chicken and Eggs 2 [02:55]
Chicken and Eggs [02:55]
Classifying Polygons Based on Perpendicular Lines [03:34]
Comparing Decimals (To Thousandths) [04:18]
Comparing Decimals to Hundredths Using Visual Models [04:59]
Comparing Fractions Using the Number Line [00:05]
Comparing Fractions [03:49]
Comparing Whole Numbers [05:47]
Computing Times as Many Using Multiplication [01:13]
Counting Siblings [02:03]
Creating Bar Graphs [03:17]
Crystal Ball (Part 1) [04:26]
Crystal Ball (Part 2) [03:52]
Digits and Place Value (Part 1) [02:15]
Digits and Place Value (Part 2) [02:06]
Dividing a Number into Groups (Example) [01:42]
Dividing a Number into Groups [03:52]
Divisibility Rules for 2,3 and 5 [04:58]
Divisibility Rules for 6, 9 and 10 [04:17]
Division and Multiplication [03:52]
Division Using Arrays (Example) [02:20]
Division Using Arrays [03:54]
Division Using Base-Ten Blocks Representation (Part 1) [00:41]
Division Using Base-Ten Blocks Representation (Part 2) [05:17]
Division Using Multiplying up Strategy (Example) [05:37]
Division Using Multiplying up Strategy [04:48]
Division Using the Area of a Rectangle (Example) [07:55]
Division Using the Area of a Rectangle [05:30]
Drawing Pictographs [00:56]
Egg Cartons [01:54]
Elements in Number Patterns [03:21]
Elements in Shape Patterns [03:09]
Equivalent Fractions Using Area Models [02:12]
Estimating Sums [02:26]
Evaluating Expressions [04:33]
Expanded Form for Decimals [05:16]
Exponents [03:06]
Factors and Factor Pairs [02:49]
Finding Factor Pairs Using Number Line [03:11]
Finding Factor Pairs [04:57]
Finding the Missing Element [04:10]
Finding the Unknown Factor Using the Multiplication Table [02:47]
Fish Bowls [01:53]
Fourth Grade Students [02:56]
Going to Safari [03:36]
Grocery Shopping [05:22]
How Much Sugar [03:19]
How Much Taller [02:11]
Interpreting Remainders (Part 1) [03:22]
Interpreting Remainders (Part 3) [02:05]
Jim's Family [01:42]
Juice Bottle [02:16]
Kayla's Garden [05:37]
Kites and Rhombuses [03:38]
Length Measurements [05:03]
Library [02:38]
Like Terms [02:29]
Lilly's Age [04:02]
Line and Angle Properties in Polygons [04:02]
Line of Symmetry in Polygons [04:20]
Line of symmetry in regular polygons [03:35]
Line Plots for Fractions [06:01]
Line Plots with Fractional Units [04:09]
Line Segments, Rays and Lines [05:54]
Liquid Volume [05:38]
Long Division (Four-Digit Dividend) [08:00]
Long Division (Four-Digit Dividend) [05:29]
Long Division (Three-Digit Dividend _ One-Digit Divisor) [07:09]
Long Division (Three-Digit Dividend _ Two-Digit Divisor) [04:30]
Long Division (Two Digit Dividend) (Part 2) [06:30]
Long Division (Two-Digit Dividend) (Part 1) [03:25]
Long Division (Two-Digit Dividend) [04:38]
Long Division and Money (Part 1) [02:08]
Long Division and Money (Part 2) [04:41]
Long Division with Remainder (Part 1) [01:55]
Long Division with Remainder (Part 2) [02:03]
Luka's Pool [02:26]
Making Bracelets [03:55]
Making Cookies [05:39]
Making Cupcakes [02:45]
Making Fruit Punch [05:44]
Making Lemonade [04:45]
Making Pastries [06:33]
Making Smoothie [03:50]
Matching Parts of Symmetrical Shapes [03:24]
Math Class [02:44]
Mean Absolute Deviation [03:57]
Measures of Center [02:34]
Measuring Angles [02:42]
Measuring Distance [03:52]
Measuring Insects [05:45]
Measuring Liquid Volume [01:53]
Measuring Mass in Kilograms [02:19]
Measuring Mass Using Grams [03:00]
Measuring the Area of a Plane Figure on a Grid [02:24]
Measuring the Perimeter of Plane Figures Using a Grid [02:23]
Measuring the Volume of a Rectangular Prism (Part 1) [03:00]
Measuring the Volume of a Rectangular Prism (Part 2) [01:50]
Measuring the Volume of an L-Shaped Figure [03:19]
Measuring Time (Part 1) [01:42]
Measuring Time (Part 2) [02:23]
Measuring Volume by Counting Unit Cubes [03:26]
Measuring Volume [03:16]
Meat Display [04:48]
Mental Math Subtraction (Example) [01:42]
Mental Math - Addition [03:15]
Mental Math - Subtraction [04:19]
Metals Weight [04:05]
Metric System (Part 1) [03:58]
Metric System (Part 2) [03:18]
Milk Container [03:10]
Milkman [02:41]
Mixed Numbers and Improper Fractions on the Number Line [04:02]
Mixed Numbers and Improper Fractions [05:41]
Money Split [05:24]
Mowing Lawns [03:05]
Multiples and Factors 2 [02:30]
Multiples and Factors [02:30]
Multiples of 10 [02:35]
Multiples [03:14]
Multiplication and Groups [03:01]
Multiplication and Multiplicative Comparison [00:05]
Multiplication and Repeated Addition [04:08]
Multiplication as Resizing (Part 1) [03:24]
Multiplication as Resizing (Part 2) [03:32]
Multiplication by Large Place Values and their Multiples (Part 1) [02:21]
Multiplication by Large Place Values and their Multiples (Part 2) [01:53]
Multiplication by Multi-Digit Numbers [04:48]
Multiplication by One-Digit Numbers [04:37]
Multiplication by Two-Digit Numbers [06:49]
Multiplication Properties (Part 1) [01:49]
Multiplication Properties (Part 2) [03:03]
Multiplication Table (Part 1) [04:37]
Multiplication Table (Part 2) [03:02]
Multiplication Table and the Distributive Property [02:48]
Multiplication Using Arrays [03:31]
Multiplication Using the Expanded Form (Example) [00:10]
Multiplication Using the Expanded Form [03:34]
Multiplication Using the Number Line [01:58]
Multiplication Using Visual Models (Part 1) [02:29]
Multiplication Using Visual Models (Part 2) [04:04]
Multiplying a Whole by a Fraction (Example) [01:46]
Multiplying a Whole by a Fraction [04:03]
Multiplying a Whole Number by a Unit Fraction Using the Number Line [00:46]
Multiplying Algebraic Expressions (Part 1) [02:25]
Multiplying Algebraic Expressions (Part 2) [01:53]
Multiplying by Even Numbers (Part 1) [02:02]
Multiplying by Even Numbers (Part 2) [02:32]
Multiplying by Multiples of 10 [02:48]
Multiplying by Powers of Ten [04:14]
Multiplying Decimals by Powers of Ten (Part 1) [03:35]
Multiplying Decimals by Powers of Ten (Part 2) [03:17]
Multiplying Decimals Using the Number Line [03:25]
Multiplying Decimals Using Visual Models [03:54]
Multiplying Decimals [00:15]
Multiplying Fractions (Example) [01:08]
Multiplying Multi-Digit Whole Numbers by a One-Digit Whole Number [02:46]
Multiplying Numbers in Scientific Notation (Example) [01:59]
Multiplying Numbers in Scientific Notation [03:34]
Multiplying Two Digit Whole Numbers Using the Expanded Form (Example) [01:35]
Multiplying Two Fractions Using Area Models (Example) [02:34]
Multiplying Two Fractions Using Area Models [04:01]
Multiplying Two Mixed Numbers [04:24]
Multiplying Two-Digit Whole Numbers Using the Expanded Form [02:53]
Multiplying Two-Digit Whole Numbers Using the Standard Procedure (Example) [02:20]
Multiplying Two-Digit Whole Numbers Using the Standard Procedure [03:02]
Multiplying Unit Fractions Using Area Models [04:43]
Multiplying Whole Numbers by Fractions [00:10]
Naming Angles [02:43]
Nets (Part 1) [02:20]
Nets (Part 2) [03:06]
New House [02:53]
Non-Repeating Number Patterns [03:04]
Numbers and Base-Ten Blocks (Part 1) [01:53]
Numbers and Base-Ten Blocks (Part 2) [03:10]
Olivia's Garden [03:26]
Operation Words [00:15]
Operations with Rational Numbers [03:14]
Order of Operations [03:47]
Ordering Integers Using a Number Line [04:18]
Ordering Numbers in Scientific Notation (Part 1) [03:19]
Ordering Numbers in Scientific Notation (Part 2) [02:27]
Organizing Measurement Data [02:55]
Packaging Books [04:13]
Parallel, Intersection and Perpendicular Line [03:39]
Patterns and Relations [00:20]
Patterns in the Multiplication Table and The number 5 [02:38]
Percent Change (Example) [01:25]
Percent Change [02:08]
Percent Error [02:34]
Percent of a Whole [03:05]
Percent Proportion [03:39]
Percents [03:48]
Perfect Cube Numbers (Part 1) [02:33]
Perfect Cube Numbers (Part 2) [03:26]
Perimeter Formula of a Rectangle [02:16]
Perimeter of Plane Figures [03:17]
Place Value and Multiplication by 10 [04:47]
Place Value and Multiplication by One Tenth (Part 1) [01:07]
Place Value and Multiplication by One Tenth (Part 2) [03:22]
Place Value and Multiplication by Ten [05:21]
Place Value Chart [04:04]
Place Values and Division by Ten [06:07]
Placeholders and Trailing Zeros [00:10]
Placing the Decimal Point in the Product (Example) [02:41]
Placing the Decimal Point in the Product [03:04]
Playing in the Park [03:32]
Plotting Coordinates [05:38]
Plotting Paths in a Coordinate Plane [04:24]
Plotting Rational Numbers on a Number Line [04:42]
Points And The Elephant In The Room [00:20]
Points, Line Segments, Rays and Lines in Two-Dimensional Figures [02:52]
Polygons and Special Types of Polygons [04:36]
Pool Perimeter (Part 1) [02:17]
Pool Perimeter (Part 2) [02:47]
Positive and Negative Numbers [04:00]
Power of a Product Property (Example) [02:33]
Power of a Product Property [04:09]
Powers of Ten [03:56]
Preparing Tomato Sauce (Part 1) [03:42]
Preparing Tomato Sauce (Part 2) [02:48]
Present Box [02:14]
Prime Factorization [03:36]
Prime Numbers [01:17]
Product of Two Proper Fractions [04:25]
Product of Whole Numbers and Mixed Numbers [04:33]
Product of Whole Numbers and Proper Fractions [05:06]
Proportional Relationships in a Graph [03:41]
Proportional Relationships in a Table (Part 1) [01:37]
Proportional Relationships in a Table (Part 2) [02:50]
Quadrilaterals [02:03]
Quartiles and Interquartile Range [03:45]
Quotients and the Division Operation [04:39]
Rabbit Farm [02:00]
Rates and Unit Rates (Example) [01:16]
Rates and Unit Rates [01:32]
Rational Numbers [04:40]
Ratios [03:47]
Reading _ Writing Decimal Numbers in Words [06:30]
Reading and Interpreting Line Plots (Part 1) [04:36]
Reading and Interpreting Line Plots (Part 2) [02:39]
Reading and Writing Whole Numbers (Base-ten numerals) [05:30]
Reading and Writing Whole Numbers in Expanded Form (Example) [03:09]
Reading and Writing Whole Numbers in Expanded Form [04:23]
Reading and Writing Whole Numbers in Words ( Number Names) [04:25]
Reading Coordinates [05:59]
Reading Data in Bar Graphs Drawn on a Grid [03:48]
Reading Data in Bar Graphs [03:11]
Reading Homework [02:41]
Reading the Odometer (Rounding Large Whole Numbers to the Nearest Ten with a Carry) [03:09]
Reasonableness of Answers Using Rounding [03:19]
Reciprocals [03:31]
Recognizing Rectangles [02:28]
Recognizing Rhombi [01:55]
Rectangles with Fractional Side Lengths [05:57]
Rectangles, Rhombuses and Squares [03:01]
Redistributing Candy [04:11]
Redistribution Using Line Plots [05:42]
Reflections on the Coordinate Plane [05:40]
Regular & Irregular Polygons [04:10]
Repeated and Non-Repeating Number Patterns [03:24]
Repeated Factor Expressions and Exponential Notation [03:39]
Represent Division as Fractions (Example) [02:27]
Represent Division as Fractions Using the Number Line (Example) [01:57]
Represent Division as Fractions Using the Number Line [04:28]
Represent Division as Fractions Using Visual Models [04:30]
Represent Division as Fractions [03:52]
Representing Measurements with Line Plots [03:40]
Representing Real-World Situations with Inequalities (Part 1) [02:36]
Representing Real-World Situations with Inequalities (Part 2) [03:24]
Representing Remainders as Fractions (Part 1) [04:12]
Representing Remainders as Fractions (Part 2) [02:45]
Road Trip [02:34]
Ron's Marbles [02:08]
Rotations [06:04]
Rounding Decimals (To any place) [05:23]
Rounding Decimals to Whole Numbers [06:33]
Rounding to the Nearest 10 (Part 1) [03:08]
Rounding to the Nearest 10 (Part 2) [03:04]
Rounding to the Nearest 10 and 100 [04:55]
Rounding to the Nearest 10 with a Carry in Many Places [03:41]
Rounding to the Nearest 100 [04:21]
Rounding to the Nearest Ten (Part 1) [02:02]
Rounding to the Nearest Ten (Part 2) [02:43]
Rounding to the Nearest Ten with a Carry [03:17]
Rounding to the Nearest Tenth [05:04]
Rounding Whole Numbers to any Place (Example) [01:09]
Rounding Whole Numbers to any Place [03:05]
Rounding Whole Numbers Using the Number Line (Part 1) [02:26]
Rounding Whole Numbers Using the Number Line (Part 2) [02:03]
Rules for Number Patterns [04:16]
Running Distance [03:09]
Ryan’s Poster [02:13]
Sam and his Mother [01:49]
Sam's Weight [02:09]
Same Change Flip Strategy [02:34]
School Cafeteria [03:00]
School Laboratory [04:47]
School Play [05:04]
School Race [00:36]
School Theater [02:33]
School Windows [04:02]
Seats Arrangement [03:12]
Selling Candy (Part 1) [02:53]
Selling Candy (Part 2) [03:24]
Shape Patterns [02:43]
Sharing Cereals [04:57]
Sharing Cookies [02:39]
Shipping Toys [02:47]
Shopping for Winter [02:51]
Shopping with Sara [02:48]
Short Division [05:10]
Shortcuts when Comparing Decimals (To Thousandths) [03:38]
Simple Interest Formula [03:28]
Simplest Form (Part 1) [03:32]
Simplest Form (Part 2) [04:13]
Simplifying Algebraic Expressions (Example) [01:27]
Simplifying Algebraic Expressions [02:16]
Simplifying Expressions (Part 1) [01:18]
Simplifying Expressions (Part 2) [02:30]
Simplifying Expressions with Subtraction (Example) [02:40]
Simplifying Expressions with Subtraction [01:57]
Simplifying Multiplication of Decimals By Powers of 10 [03:19]
Sketching Angles [04:56]
Snow Height [02:17]
Snow Mountain [00:27]
Snowstorm [05:19]
Solid Figures (Part 1) [02:42]
Solid Figures (Part 2) [02:49]
Solving Addition Equations Involving Decimals [03:22]
Solving Addition Equations Involving Fractions [02:26]
Solving Addition Equations Using Inverse Operations [02:45]
Solving Division Equations Involving Decimals [02:07]
Solving Equations Using Square Roots (Example) [03:07]
Solving Equations Using Square Roots [04:30]
Solving Multiplication Equations Using Inverse Operations (Example) [01:39]
Solving Multiplication Equations Using Inverse Operations [02:29]
Solving One Step Equations Using a Pan Balance (Example) [01:57]
Solving One-Step Equations Using a Pan-Balance [03:06]
Solving One-Step Equations Using the Reciprocal [02:59]
Solving Subtraction Equations Involving Decimals [02:59]
Solving Subtraction Equations Involving Fractions [02:09]
Solving Subtraction Equations Using Inverse Operations (Example) [01:14]
Solving Subtraction Equations Using Inverse Operations [02:39]
Splitting Fudge [05:01]
Sport Store [01:55]
Statistics and Statistical Questions [03:22]
Subtracting Across Zeros [03:34]
Subtracting Decimals (Example) [03:03]
Subtracting Decimals Using a (10 x 10) Grid (Example) [02:16]
Subtracting Decimals Using a (10 x 10) Grid [03:47]
Subtracting Decimals Using the Number Line (Example) [02:04]
Subtracting Decimals Using the Number Line [04:15]
Subtracting Decimals [03:57]
Subtracting Fractions Using the Number Line [02:33]
Subtracting Fractions With Equal Denominators On The Number Line [03:11]
Subtracting Fractions With Equal Denominators [03:28]
Subtracting Fractions [02:23]
Subtracting Measurements of Mass [02:39]
Subtracting Mixed Numbers (Example) [03:01]
Subtracting Mixed Numbers [04:52]
Subtracting Multi-Digit Whole Number [05:36]
Subtracting Multi-Digit Whole Numbers (Example) [01:29]
Subtracting Multi-Digit Whole Numbers [02:29]
Subtraction of Multi-Digit Whole Numbers (Part 1) [02:38]
Subtraction of Multi-Digit Whole Numbers (Part 2) [03:43]
Subtraction Using Base-Ten Blocks (Example) [01:47]
Subtraction Using Base-Ten Blocks with Regrouping (Example) [02:37]
Subtraction Using Base-Ten Blocks with Regrouping [01:07]
Subtraction Using Base-Ten Blocks [03:18]
Subtraction with a Borrow (Example) [01:59]
Subtraction with a Borrow [02:28]
Subtraction [04:46]
Swimming Competition [03:43]
Symmetrical & Non Symmetrical Shapes [03:32]
Symmetry & Line Of Symmetry [01:57]
Tax and Tip [02:51]
Team Uniform [04:12]
Telling Time on a Watch (Example) [01:46]
Telling Time on a Watch (Part 1) [01:55]
Telling Time on a Watch (Part 2) [01:46]
The Associative Property of Multiplication [03:15]
The Commutative Property of Multiplication [03:36]
The Coordinate System [05:46]
The Distributive Property of Multiplication [03:09]
The Graph of a Linear Equation in Two Variables [05:06]
The Intersection [05:37]
The Meat Shop [03:48]
The Multiplication Table [03:44]
The Order of Operations in Numerical Expressions [05:32]
The Solution of an Equation (Part 1) [02:49]
The Solution of an Equation (Part 2) [02:08]
The Solutions of an Inequality (Example) [03:02]
The Solutions of an Inequality [03:19]
The Windmill [03:51]
Tiling the Floor [02:16]
Time Estimates [02:02]
Time Measurements (Part 1) [02:57]
Time Measurements (Part 2) [02:41]
Time Unit Conversion [03:24]
Training for the Race [04:18]
Translating Verbal Expressions Containing _Less Than_ into Algebraic Expressions [02:35]
Translating Verbal Expressions into Algebraic Expressions [04:47]
Tree Leaves [05:23]
Trip to the Amusement Park [06:00]
Two-Dimensional Figures and Polygons (Advanced) [04:08]
Two-Dimensional Figures and Polygons [03:35]
Types Of Lines Of Symmetry [02:52]
Understanding Coefficients [03:57]
Understanding Dividing Integers [04:03]
Understanding Graphs of Proportional Relationships [03:09]
Understanding Opposites [03:01]
Unit Cubes [02:28]
Unit Fractions on the Number Line [03:33]
Unit Fractions [01:07]
Unit Price [02:41]
Unit Rates with Complex Fractions [02:38]
Unit Rates [02:30]
Unit Square for Measuring Area [03:29]
Using a Protractor to Measure Angles [05:42]
Using Expressions to Describe Patterns (Example) [02:43]
Using Expressions to Describe Patterns [03:11]
Using Perimeter to Find the Sides' Lengths (Part 1) [01:38]
Using Perimeter to Find the Sides' Lengths (Part 2) [03:30]
Using Variables to Represent Real World Situations (Example) [01:42]
Using Variables to Represent Real World Situations [01:52]
Using Words to Describe Expressions [04:16]
Vacation in the Island [05:35]
Variables and Coefficients [03:25]
Venn Diagrams [04:34]
Volume and Capacity [01:42]
Volume and Surface Area of a Cube [03:11]
Volume Formula of a Rectangular Prism (Example) [01:22]
Volume Formula of a Rectangular Prism [02:31]
Volume of a Rectangular Prism Using the Area of the Base [03:10]
Volume of a Swimming Pool [01:42]
Volume of an L Shaped Swimming Pool [03:03]
Volume with Fractional Edge Lengths [04:35]
Walking to School [02:54]
Watering the Garden [02:26]
Weight Measurements [03:17]
What are Equivalent Fractions [03:27]
What is a Fraction (example) [02:51]
What is a Fraction [02:22]
What is a Prime Number_ [03:12]
Whole Numbers as Fractions Using Visual Models (Part 1) [01:43]
Whole Numbers as Fractions Using Visual Models (Part 2) [03:00]
Writing Numerical Expressions for Verbal Statements [04:16]
Writing Wholes as Fractions [03:51]
Yummy Pie [05:17]
Zeros in Numbers [03:01]