National Council of Teachers of Mathematics
Nctm: Illuminations: Fraction Models
Explore different representations for fractions including improper fractions, mixed numbers, decimals, and percentages. Additionally, there are length, area, region, and set models.
Khan Academy
Khan Academy: Multiplying Fractions With Visuals
Use area models and tape diagrams to multiply a fraction times a fraction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
PBS
Pbs: Modeling Fraction and Mixed Number Division Using Arrays
This video illustrates how to use an array as a visual model for solving a word problem involving the division of fractions and mixed numbers. The problem asks students to determine the width of a rectangular fennec fox den based on its...
PBS
Pbs: Modeling Fraction Division Using Arrays
This video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to determine the width of a rectangular platypus burrow based on its length and area. In the accompanying...
Better Lesson
Better Lesson: Representing Fraction Multiplication
Riley has only completed one-third of her part of the mural. How can you find 1/3 of 1/2? Students extend their understanding of multiplication to fractions and area models.
Better Lesson
Better Lesson: What Fraction of the Section Does Each Person Own?
What fraction of the section of land does each person own? Students use an area model of farmland to determine how much land each person owns.
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...