1: The Expanded Form of Addition

Target Sum Card Game (Multi-digit Addition)

3: The Expanded Form of Subtraction

Cargo Captain (Multi-digit Subtraction)
Graphing Skills

4: More on the Expanded Form of Subtraction

Mascot Election (Pictographs and Bar Graphs)

8: The Expanded Form of Multiplication

Elevator Operator (Line Graphs)

16: Fractions on a Number Line

Comparing and Ordering Fractions
Movie Reviewer (Mean and Median)

17: Fractional Parts Between 0 and 1

Fraction Garden (Comparing Fractions)
Modeling Fractions (Area Models)

18: Visualizing Fractional Parts with Different Shapes

Fraction Artist 1 (Area Models of Fractions)
Fraction Artist 2 (Area Models of Fractions)

19: Numerator and Denominator

Reaction Time 1 (Graphs and Statistics)

20: Understanding Fractional Parts

Movie Reviewer (Mean and Median)

21: Fractions Equal to, Less Than, and Greater Than 1

Fractions Greater than One (Fraction Tiles)
Movie Reviewer (Mean and Median)

22: Estimating Fractions

Estimating Sums and Differences

23: Surveying Students - Fractions and Statistics

Stem-and-Leaf Plots

27: Equivalent Fractions

Equivalent Fractions (Fraction Tiles)

31: Same Denominator

Adding Fractions (Fraction Tiles)

37: Measuring Objects with a Ruler

Measuring Trees

41: What is Multiplication

Critter Count (Modeling Multiplication)

42: Multiplying a Fraction by a Fraction

Multiplying Fractions

43: Thinking About Multiplying Fractions Another Way

Chocomatic (Multiplication, Arrays, and Area)

49: Dividing Fractions by Fractions

Dividing Fractions

53: Improper Fractions and Mixed Numbers

Fractions Greater than One (Fraction Tiles)
Rock Art (Transformations)

60: Changing Mixed Numbers Into Improper Fractions

Improper Fractions and Mixed Numbers

61: Multiplying Mixed Numbers

Multiplying Mixed Numbers

62: Reflections

Quilting Bee (Symmetry)
Reflections

63: Dividing Mixed Numbers

Dividing Mixed Numbers

66: What are Decimals?

Modeling Decimals (Area and Grid Models)
Modeling Decimals (Base-10 Blocks)
Treasure Hunter (Decimals on the Number Line)

68: Writing Fractions as Decimals

Fraction, Decimal, Percent (Area and Grid Models)

69: Writing Decimals as Fractions

Fraction, Decimal, Percent (Area and Grid Models)

70: More Practice with Decimals

Isosceles and Equilateral Triangles

76: Ordering Decimals

Comparing and Ordering Decimals

80: Adding and Subtracting Decimals

Adding Decimals (Base-10 Blocks)
Subtracting Decimals (Base-10 Blocks)

81: Adding Zeros to Decimal Numbers

Area of Parallelograms - Activity A

82: Making Sense of Decimal Numbers

Area of Parallelograms - Activity B

83: Multiplication With Decimal Numbers

Multiplying with Decimals

85: Multiplying Decimals and Number Sense

Polygon Angle Sum - Activity B

86: Dividing Decimal Numbers

Circle: Circumference and Area
Measuring Trees

88: Dividing Decimals and Number Sense

Circle: Circumference and Area

90: What are Percents

Graphing Skills
Percents and Proportions

91: Percents and Fractions

Fraction, Decimal, Percent (Area and Grid Models)
Ordering Percents, Fractions and Decimals

96: Percent Increases

Percent of Change