# Web Links for Math 4, 3rd ed.

About Links## Website Resources

### Chapter 1: Place Value & Money

- Place Value Number Line

exploring place value by placing dots on number lines - Money

counting and making change

### Chapter 2: Addition and Subtraction of Whole Numbers

- Base Blocks Addition

using base ten blocks to model grouping in addition - Number Line Arithmetic

using a number line to illustrate arithmetic operations - Number Line Bars

using bars to show addition, subtraction, multiplication, and division on a number line - Number Puzzles

solving puzzles by arranging numbers on a diagram to add up to a given value - Diffy

solving puzzles involving the differences of given numbers - Number Line Bounce

number line addition and subtraction game

### Chapter 3: Fractions

- Fractions - Parts of a Whole

relating parts of a whole unit to written description and fraction - Fractions - Visualizing

illustrating a fraction by dividing a shape and highlighting the appropriate parts - Fractions - Naming

entering the fraction that corresponds to the highlighted portion of a shape - Fractions - Equivalent

illustrates relationships between equivalent fractions - Fractions - Comparing

determining the size of fractions and plotting them on a number line - Fraction Bars

using fraction bars to learn about fractions - Spinners

using spinners to learn about numbers and probabilities

### Chapter 4: Multiplication & Division Facts

- Sieve of Eratosthenes

relating number patterns with visual patterns - Number Line Bars

using bars to show addition, subtraction, multiplication, and division on a number line - Number Line Arithmetic

using a number line to illustrate arithmetic operations

### Chapter 5: Decimals

- Place Value Number Line

exploring place value by placing dots on number lines - Decimal Tiles (Bars)

understanding how parts make up a whole

### Chapter 6: Multiplication: 1-Digit Multipliers

- Sieve of Eratosthenes

relating number patterns with visual patterns - Number Line Bars

using bars to show addition, subtraction, multiplication, and division on a number line - Rectangle Multiplication

visualizing the multiplication of two numbers as an area

### Chapter 7: Geometry: Plane Figures

- Rectangle Multiplication

visualizing the multiplication of two numbers as an area - Geoboard

using geoboards to illustrate area, perimeter, and rational number concepts - Geoboard - Circular

using circular geoboards to illustrate angles and degrees - Ladybug Leaf

programming a ladybug to hide behind a leaf - Ladybug Mazes

programming a ladybug to move through a maze

### Chapter 8: Division: 1-Digit Divisors

- Number Line Arithmetic

using a number line to illustrate arithmetic operations - Number Line Bars

using bars to show addition, subtraction, multiplication, and division on a number line - Rectangle Division

dividing numbers by using an area representation - Math Man

solving an equation game - Division Drag Race

choosing the correct quotients faster than three opponents

### Chapter 9: Data & Graphs

- Bar Chart

creating a bar chart of quantities or percentages by labeling columns and selecting values - Pie Chart

exploring percentages and fractions using pie charts

### Chapter 10: Customary Measurement & Time

- Measuring: Find Lengths with a Ruler

choosing lengths to the nearest whole, half, quarter, or sixteenth of an inch

### Chapter 11: Multiplication: 2-Digit Multipliers

- Sieve of Eratosthenes

relating number patterns with visual patterns - Rectangle Multiplication

visualizing the multiplication of two numbers as an area

### Chapter 12: Fractions: Addition & Subtraction

- Fractions - Equivalent

illustrates relationships between equivalent fractions - Number Line Bars

using bars to show addition and subtraction of whole numbers on a number line; then setting the step size to a fractional value to show addition and subtraction of fractions on a number line - Fractions – Adding

illustrating what it means to find a common denominator and combine - Fraction Bars

using fraction bars to learn about fractions

### Chapter 13: Metric Measurement

- Measuring: Find Lengths with a Ruler

choosing lengths to the nearest whole, half, or quarter centimeter

### Chapter 14: Division: 2-Digit Divisors

- Rectangle Division

dividing numbers by using an area representation

### Chapter 15: Geometry: 3-Dimensional Figures

- Cube

choosing various nets that will form a cube, volume, cubic packaging activity - Pyrite

cubes by design (God’s creation) - Space Blocks

creating patterns using three-dimensional blocks - Point Plotter

plotting ordered pairs on a graph - Ladybug Leaf

programming a ladybug to hide behind a leaf - Ladybug Mazes

programming a ladybug to move through a maze

### Chapter 16: Pre-Algebra

- Place Value Number Line

exploring place value by placing dots on number lines

### General Resources

- ABCya.com

computer games and activities for elementary students - National Library of Virtual Manipulatives

interactive, virtual manipulatives or concept tutorials (K–12) - Aplusmath.com

interactive use of flash cards, games, homework, and worksheets - Cool Math

cool math lessons, activities, games, and apps, pre-algebra, algebra, precalculus

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Due to the transient nature of Internet websites, these links are updated regularly. At the time of publication, all of the web links suggested in our educational materials were active. Since then, some may have been replaced by similar websites or removed from this list. If you have comments, suggestions, questions, or find that one of these resources is no longer in service, please e-mail us.