Use tiling to show in a concrete case that the area of a rectangle with wholenumber side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning.
There are 5 videos in this category and 0 videos in 0 subcategories.
Category Videos

Not Right For WatchKnowLearn
Ages: 9  15
6279 Views:

Dunk Tank is a maththemed game show created by the producers of Cyberchase and starring Harry from Cyberchase For Real. Using a combination of video and interactive gaming, each program addresses a single topic in the 6th grade math curriculum and s...tudents compete with themselves for high scores. Dunk Tank is an independent learning experience for students to complete in 1530 minutes, depending on their proficiency, and can also be used to support teacherled instruction. In this interactive, Harry explains key concepts about finding the area of squares, rectangles and composite shapes, including measuring with unit squares and using the formula Length x Width to calculate area. Students play Polygonathon, a minigame that challenges them to make simple polygons and find their areas; watch a comic video about using a nonstandard unit of measure – sleeping bags! – to calculate how many friends can come for a sleepover; and answer other questions designed to help them further their understanding of area. Students can access support using a glossary, defining key math terms, and a menu of short segments to rewatch.
[more]
June 18, 2012 at 09:10 PM


Not Right For WatchKnowLearn
Ages: 9  13
2997 Views:

Distinguish between the perimeter and area in contextual situations. Identify polygons having the same perimeter or area.
July 17, 2012 at 03:48 PM


Not Right For WatchKnowLearn
Ages: 9  18
3732 Views:

How to compute area of rectangles  TenMarks teaches you how to compute area and perimeter of a rectangle. (04:33)
March 26, 2011 at 02:12 PM


Not Right For WatchKnowLearn
Ages: 8  13
2840 Views:

Review area and perimeter of rectangles. Use formulas to solve problems and investigate how charts can assist in pattern recognition and making predictions.
June 18, 2012 at 10:49 PM


Not Right For WatchKnowLearn
Ages: 9  13
1256 Views:

Learn to find the area of rectangles in this video. The instructor first reviews some basics about polygons and rectangles. In her first problem, she shows how to find the area of a rectangle by tiling it. She shows how tiling it and counting the squ...ares provides us with the same area as if we used multiplication. NOTE: She mistakenly says "triangles" instead of "rectangles" a couple of times when teaching the formula for area. In the second problem, she presents a word problem to find the area of a square. (10:01)
[more]
October 27, 2012 at 01:31 AM
