Suggested Sites from NCDPI - a few sites listed with decriptions to practice mathematical thinking at home
Khan Academy - Great site with good video links for lessons/concepts
Math Arcade - The math arcade has many games and activies
Interactive Multiplication Games - Play games to practice your multiplication facts. If you've mastered them, go to the next page to practice division
Math Maven's Mysteries - Great mysteries to read and solve. You can print them out to take with you.
Area and Perimeter:
Area and Perimeter - A vdeo overview including examples of area and perimeter
Area and Perimeter with Irregular Shapes - A brief tutorial on how to find out the are and perimeter of irregular shapes
Into to the Metric System - An overveiw of the metric system and common units
Metric Length - A page of common metic length units and examples of relative size based on common items
Metric Volume - Explanation and examples of milliliters and liters.
Metric Mass - Explanation and examples of unit of metric mass
Intro to Decimals - A video introduction that includes place value and relation to tenths and hundredths fractions.
Converting Base Ten Fractions to Decimals - A Math Antics lesson for how to convert base ten fractions
Adding Base Ten Fractions - Video explanation of how to add base ten fractions when the denominators are not the same
Comparing Decimals - Khan Academy video modeling how to compare decimals (4th grade is only responsible for thenths and hundredths)
Scholastic Math Comparing Decimals - A video showing how to compare decimal numbers
Compare Decimals Using Fraction Models - A Learnzillion tutorial on comparing decimals up to the hundredths using a fration model
StudyJams Introduction to Fractions - A good resource for kids to refresh their memory of what a fraction is
Study Jams Equivalent Fractions - A source for introducing and/or reviewing equivalent fractions
Equivalent Fractions on a Number Line - Tutorial video on how to find equivalent fractions using a number line
Recognizing Equivalent Fractions using Area Models - A video lesson with examples on how to recognize equivalent fractions through the use of models.
Recognizing Equivalent Fractions Using a Number Line - A video lesson with examples on how to recognize equivalent fractions through the use of number lines.
Comparing Fractions Using a Benchmark - Video exaining how to use the benchmark fraction of 1/2 to compare fractions.
Improper Fractions - Step by step explanation of improper fractions and how to convert them to mixed numbers
Mixed Numbers - Step by step explanation of mixed numbers and how to convert them to an improper fraction
Adding and Subtracting Fractions - A Math Antics video explaining addition and subtraction of fractions with like denominators.
Adding Mixed Numbers - A Math Antics explanation of how to successfully add mixed numbers.
Subtracting Mixed Numbers - A Math Antics explanation of how to successfully subtract mixed numbers.
Multiplying Fractions with Whole Numbers - A Number Rock song and video explaining the steps to multiply a fraction with a whole number.
Number and Shape Patterns:
Number Series - A YouTube video explaining how to find the next number in a series.
Number Patterns - YouTube lesson about number patterns and how to solve them.
Number/Shape Patterns - A short video solving an example number and shape pattern
Factors and Multiples:
Study Jams - Multiples - Animated and interactive Study Jams explanation of multiples
"Solve On It!" - Rap song about factors vs multiples to help students remember the difference
Study Jams! Prime vs Composite - Study Jams animation about prime and compostie numbers
Factors & Multiples - A helpful webpage from a teacher that has examples, vides, and games for factors and multiples as well as prime and composite number information.
Multiplicative Comparison Links:
Solving Multiplicative Comparison Problems - A brief video explaining what the problems are andhow to solve them.
Solve Multiplicative Comparisons Using Bar Models - An instructional video using bar models to solve word problems.
Addition and Subtraction Links:
Place Value Links: