Convert metric measurements to U.S. Measurements and the reverse, too. Easy to follow tables have sections for area, length, mass,temperature and volume.
Video lesson explores how to find the length and width of a rectangular table given the perimeter and area. [4:45]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Students determine the area and perimeter of regular polygons and use that information to conduct a beginning investigation of limits.
Find the area and perimeter of quadrilaterals using their coordinates. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This short video and interactive assessment activity is designed to teach third graders about area in grid.
This short video and interactive assessment activity is designed to teach third graders an overview of area of squares and rectangles - word problems.
Practice finding the areas of trapezoids. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This lesson presents the idea that the area of any triangle is exactly half of a certain parallelogram -- thus we get the familiar formula of multiplying the base and the altitude and taking half of that. The lesson contains varied exercises for students.
Learn the formula for the area of a triangle, one half base times height. [5:29]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Video tutorial introduces the area of a rectangle and discovers a formula for the area of a right triangle. [4:44]
In this lesson, students calculate the perimeter of various geometric shapes and represent the perimeter with a movement phrase. They will identify the types of angles within each shape. Other students will identify the shape that was demonstrated.
Students work with 3-digit numbers as they solidify their understanding of the difference between perimeter and area.
Area word problems using a real world context pose new mathematical challenges for students to negotiate.
Lesson plan in which students calculate area, build areas to a given amount, and calculate the perimeter with the use of Legos. Step by step instructions and videos are provided. CCSS.Math.Content.3.MD.C.7.c Use area models to represent the distributive property in mathematical reasoning.
Students need time to connect area and perimeter. This two day exploration sets the stage for our short unit.
Students build models wherein the area remains the same, while changing perimeters.
Students use their understanding of area to have a meaningful debate about a building plan.
Students apply what they know about area of other polygons to develop a formula for finding the area of a triangle.
Creating rooms with different dimensions but the same area improves understanding of multiplicative principles.
Students use area models to find the total area of a store, home, or other real world space.