# Web Links for Math 4, 3rd ed.

About Links## 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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