6.1.A: Compare and order non-negative fractions, decimals, and integers using the number line, lists, and the symbols <, >, or =.

Comparing and Ordering Decimals
Fraction Garden (Comparing Fractions)
Integers, Opposites, and Absolute Values
Modeling Decimals (Area and Grid Models)
Modeling Decimals (Base-10 Blocks)
Modeling Fractions (Area Models)
Rational Numbers, Opposites, and Absolute Values
Treasure Hunter (Decimals on the Number Line)

6.1.C: Estimate products and quotients of fractions and decimals.

Dividing Fractions
Dividing Mixed Numbers
Multiplying Decimals (Area Model)
Multiplying Mixed Numbers
Multiplying with Decimals
Square Roots

6.1.D: Fluently and accurately multiply and divide non-negative fractions and explain the inverse relationship between multiplication and division with fractions.

Dividing Fractions
Dividing Mixed Numbers
Factor Trees (Factoring Numbers)
Multiplying Fractions
Multiplying Mixed Numbers

6.1.F: Fluently and accurately multiply and divide non-negative decimals.

Multiplying Decimals (Area Model)
Multiplying with Decimals
Square Roots

6.1.G: Describe the effect of multiplying or dividing a number by one, by zero, by a number between zero and one, and by a number greater than one.

Multiplying Decimals (Area Model)
Solving Algebraic Equations I
Solving Algebraic Equations II
Solving Two-Step Equations

6.2: Mathematical expressions and equations

6.2.B: Draw a first-quadrant graph in the coordinate plane to represent information in a table or given situation.

Function Machines 2 (Functions, Tables, and Graphs)
Function Machines 3 (Functions and Problem Solving)
Points in the Coordinate Plane

6.2.D: Apply the commutative, associative, and distributive properties, and use the order of operations to evaluate mathematical expressions.

Equivalent Algebraic Expressions I
Equivalent Algebraic Expressions II
Order of Operations
Solving Equations by Graphing Each Side
Solving Equations on the Number Line

6.2.E: Solve one-step equations and verify solutions.

Solving Algebraic Equations II
Solving Equations on the Number Line

6.2.F: Solve word problems using mathematical expressions and equations and verify solutions.

Solving Equations on the Number Line

6.3: Ratios, rates, and percents

6.3.B: Write ratios to represent a variety of rates.

Beam to Moon (Ratios and Proportions)
Proportions and Common Multipliers

6.3.C: Represent percents visually and numerically, and convert between the fractional, decimal, and percent representations of a number.

Modeling Decimals (Area and Grid Models)
Percents, Fractions, and Decimals

6.3.D: Solve single- and multi-step word problems involving ratios, rates, and percents, and verify the solutions.

Beam to Moon (Ratios and Proportions)
Estimating Population Size
Part-to-part and Part-to-whole Ratios
Percent of Change
Percents, Fractions, and Decimals
Proportions and Common Multipliers
Real-Time Histogram

6.4: Two- and three-dimensional figures

6.4.A: Determine the circumference and area of circles.

Circumference and Area of Circles

6.4.B: Determine the perimeter and area of a composite figure that can be divided into triangles, rectangles, and parts of circles.

Area of Triangles
Fido's Flower Bed (Perimeter and Area)

6.4.C: Solve single- and multi-step word problems involving the relationships among radius, diameter, circumference, and area of circles, and verify the solutions.

Circumference and Area of Circles

6.4.D: Recognize and draw two-dimensional representations of three-dimensional figures.

Surface and Lateral Areas of Prisms and Cylinders

6.4.F: Determine the surface area of a pyramid.

Surface and Lateral Areas of Prisms and Cylinders
Surface and Lateral Areas of Pyramids and Cones

6.5: Additional Key Content

6.5.A: Use strategies for mental computations with non-negative whole numbers, fractions, and decimals.

Adding Decimals (Base-10 Blocks)
Adding Fractions (Fraction Tiles)
Cargo Captain (Multi-digit Subtraction)
Estimating Sums and Differences
Fractions Greater than One (Fraction Tiles)
Fractions with Unlike Denominators
Improper Fractions and Mixed Numbers
Multiplying Decimals (Area Model)
Multiplying Fractions
Multiplying Mixed Numbers
Subtracting Decimals (Base-10 Blocks)
Sums and Differences with Decimals

6.5.B: Locate positive and negative integers on the number line and use integers to represent quantities in various contexts.

Adding and Subtracting Integers
Adding on the Number Line
Integers, Opposites, and Absolute Values
Rational Numbers, Opposites, and Absolute Values

6.5.C: Compare and order positive and negative integers using the number line, lists, and the symbols <, >, or =.

Rational Numbers, Opposites, and Absolute Values

6.6: Reasoning, problem solving, and communication

6.6.C: Analyze and compare mathematical strategies for solving problems, and select and use one or more strategies to solve a problem.

Estimating Population Size

6.6.D: Represent a problem situation, describe the process used to solve the problem, and verify the reasonableness of the solution.

Estimating Population Size

6.6.H: Make and test conjectures based on data (or information) collected from explorations and experiments.

Polling: City
Polling: Neighborhood