Khan Academy
Khan Academy: Halves and Fourths
When a whole is divided into equal size pieces, the pieces are fractions of the whole. Sal demonstrates this concept in this video. Includes a transcript, and question and answer section. [2:24]
Khan Academy
Khan Academy: Equal Parts of Circles and Rectangles
Sal determines if shapes are divided into 2 or 4 equal sections. Includes a video, transcript, and question and answer section. [3:04]
Math Mammoth
Math Mammoth: Halves, Quarters, and Thirds: Simple Fraction Lesson
An introduction to simple fractions using visual models. [7:05]
Khan Academy
Khan Academy: Equal Parts of Circles and Rectangles
Looks at circles and rectangles that are divided into sections and discusses how to tell if they are in equal parts of halves or fourths. [3:04]
Imagine Learning Classroom
Learn Zillion: Video: Partition a Circle Into Two, Three, or Four Equal Shares
In this lesson, you will learn how to partition a circle into two, three, and four equal shares by thinking about the different ways to divide a circle. [3:52]
Khan Academy
Khan Academy: Equal Parts of Circles and Rectangles
Sal determines if shapes are divided into 2 or 4 equal sections.
Math Mammoth
Math Mammoth: Easy Fractions for 2nd Grade Math
Teaches halves, thirds, and fourths, and how to partition rectangles into equal fractional parts. [6:52]
Khan Academy
Khan Academy: Decomposing Shapes to Find Area: Subtract
Demonstrates how to find the area of a rectangular shape enclosed by another rectangle and with a third one inside it. [3:12]
Khan Academy
Khan Academy: Decomposing Shapes to Find Area: Add
Demonstrates how to break an irregular shape into three rectangles, find the individual areas, and then add them together. [3:36]
PBS
Pbs: Odd Squad: Welcome to the Pools
Learn about symmetry with the Odd Squad. Oscar shows off the Odd Squad pools and tells about the symmetric scientist who created them.
PBS
Pbs: Odd Squad: Welcome to the Break Room, Part 2
Learn how to divide a pizza into halves, fourths, and eighths when Oksana, the Odd Squad chef, shows off all of the delectable treats she makes with pudding.
Khan Academy
Khan Academy: Halves and Fourths
Demonstrates what equal parts look like when dividing shapes into halves and quarters. [2:25]
Khan Academy
Khan Academy: Cutting Shapes Into Equal Parts
Explains what one-fourth means and what it looks like when a pie is cut into four equal pieces. [1:36]