This video tutorial shares several examples of different types of triangles as they are used to determine the area of each triangle. Assessment checks understanding. [6:54]
Video tutorial uses examples to reinforce understanding of how to find the area of a circle. [2:48]
Video tutorial provides examples to reinforce understanding of how to find the area of a circle. (Part 2) [7:05]
Video tutorial uses examples to reinforce understanding of how to find the area of an acute triangle. [8:21]
Video tutorial uses examples to reinforce understanding of how to find the area of an obtuse triangle. [6:44]
Video tutorial introduces the area of a rectangle and discovers a formula for the area of a right triangle. [4:44]
Video tutorial shows how to calculate the area around a circle that is inside a square. [4:22]
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Students work with 3-digit numbers as they solidify their understanding of the difference between perimeter and area.
Area questions can be asked multiple ways and the area can be found by using different strategies.
Creating names with block letters students calculate area of irregular shapes. This activity also make a real world application to the popular video game Minecraft.
Students develop spatial reasoning about large areas through composing and decomposing rectangles to determine area.
Fractions can be used to understand halves of a unit square.
Area word problems using a real world context pose new mathematical challenges for students to negotiate.
Students write expressions to find the area of compound figures.
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 build models wherein the area remains the same, while changing perimeters.
Dividing an irregular shape into rectangles helps students find the area of an irregular shape.
Students take their knowledge about area of rectangles, squares and triangles and apply it to parallelograms, trapezoids, and composite shapes.
Students look for break apart irregular polygons to make arrays to find the area of these common shapes.