Illustrative Mathematics
Illustrative Mathematics: Dividing by One Half
This task requires students to recognize both "number of groups unknown" (part (a)) and "group size unknown" (part (d)) division problems in the context of a whole number divided by a unit fraction. It also addresses a common...
Illustrative Mathematics
Illustrative Mathematics: Locating Fractions Less Than One on the Number Line
In every part of this task, students must treat the interval from 0 to 1 as a whole, partition the whole into the appropriate number of equal sized parts, and then locate the fraction(s). Aligns with 3.NF.A.2,...
Better Lesson
Better Lesson: Where Would It Be?
A lesson plan to help conceptualize fractions as numbers. Students work to see fractions as a part of a whole and a length.
National Council of Teachers of Mathematics
The Math Forum: Intro to Fractions for Primary Students
This site from the Math Forum is a series of lesson plans with great ideas and an excellent Web site that uses virtual manipulatives with students.
Calculator Soup
Calculator Soup: Mixed Number to Improper Fraction Calculator
A mixed number is a whole number plus a fractional part. An improper fraction is a fraction where the numerator (top number) is larger than the denominator (bottom number). You can convert between mixed numbers and improper fractions...
Calculator Soup
Calculator Soup: Mixed Number to Percent Calculator
Convert mixed numbers or mixed fractions to percents. The mixed number to percentage calculator finds the decimal equivalent by finding the decimal value of the fraction, adding the decimal to the whole number part of the mixed number,...
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Multiply Fractions
This Math Page tutorial explains how to multiply a number by a fraction or a mixed number and then features a practice exercise.
Soft Schools
Soft Schools: Fractions Quiz
A quiz to assess knowledge of fractions, through which students identify the fraction represented by a simple illustration. A results summary is given at the end of the quiz, and students can return to review questions they miss.
University of Cambridge
University of Cambridge: Nrich: Rectangle Tangle
On this one page website sharpen your logic and fractional part skills while working on this challenge. The solution is available to double check your solution.
Wikimedia
Wikipedia: Fraction
This one page website provides a basic explanation of a fraction and its denominator and numerator.
Other
Math Snacks: Atlantean Dodgeball
Ratio errors confuse one of the coaches as two teams face off in an epic dodgeball tournament.
Other
Teachnet: Fraction City
This website offers an excellent lesson plan that teaches basic fraction concepts and includes an equivalent fraction procedure. Lots of detailed instructions on how to prepare and teach this topic.
PBS
Pbs Learning Media: Grubby's Wacky Worms
Wicked and Digit must solve a fraction problem in order to free the CyberSquad in this video from Cyberchase.
NumberNut
Number Nut: Breaking Down Fractions
Discover fractions in the world around us in this lesson plan that also examines how fractions are divided. Detailed examples and pictures presented to explain this concept along with key vocabulary. A brief introduction to problem...
Soft Schools
Soft Schools: Fractions Introduction Game
This math game is a basic introduction to fractions. Students analyze the number of highlighted parts of the whole and choose the correct fraction that represents the picture. Their score is recorded.
Countries and Their Cultures
Countries and Their Cultures: Pende
The Pende occupy a territory that extends from the banks of the Lutshima, a tributary of the Kwilu, to the Kasai. The last colonial census (1959) indicated that there were 200,000 western Pende and another 40,000 Pende in Kasai, the...
Scholastic
Scholastic: Max's Math Adventures: A Tale About Zeke and Zack
At this site from Scholastic you can read this tale about Zeke and Zack to learn more about splitting things in half. The activity sheet, extra challenges, and teacher's guide will help teachers make a fun and engaging lesson.
University of Georgia
University of Georgia: Intermath: Denominator
This one page website provides a definition for denominator and numerator. It also give examples.
Scholastic
Scholastic Lesson Activities: Model With Manipulatives
Two fraction activities are highlighted at this one page website. Both use manipulatives to help students begin to understand the basic concepts of fractions.
That Quiz
That Quiz: Fractions
The practice problems examine fractions, ratios, and decimals. Students choose which concept they would like to review and then answer the corresponding 10 questions. Solutions are provided for incorrect answers.
Texas Instruments
Texas Instruments: Graphs and Fractions
Have students draw squares on graph paper and half some of the squares on the outside. Number all the squares and continue numbering with the halfs. Students are then instructed to create their own ratios such as: 4 halves to eight...
PBS
Pbs Learning Media: The Puzzle of the Amulet of Amagansett
In this video segment from Cyberchase, Wicked and Digit use what they know about fractions to figure out how many jewels are missing from the Amulet of Amagansett.
Music Education
Learning to Read Music: Basic Counting, Part 2
Beginning musicians can practice reading notes and counting beats using this resource that also provides several lines of music with different types of notes, rests, and time signatures.
ABCya
Ab Cya: Elementary Math: Virtual Manipulatives: Decimal Tiles
This is a fun way for students to explore and understand how parts make up a whole. Explore fractions, percentages and decimals with this game.