Better Lesson
Better Lesson: Area of Irregular Polygon
Third graders look for break apart irregular polygons to make arrays to find the area of these common shapes.
Better Lesson
Better Lesson: Area and Perimeter in Real Life Day 1
Third graders need time to connect area and perimeter. This two day exploration sets the stage for our short unit.
Khan Academy
Khan Academy: Analyze Quadrilaterals
Classify and compare rectangles, rhombuses, and squares.
National Council of Teachers of Mathematics
Nctm: Illuminations: Area of Triangles
To find the area of a triangle, try to make a parallelogram using a copy of the triangle.
National Council of Teachers of Mathematics
Nctm: Illuminations: Area of Rectangles
This applet allows for the exploration of the area of rectangles.
National Council of Teachers of Mathematics
Nctm: Illuminations: Igd: Area of a Parallelogram
This applet will show you how to divide the parallelogram into pieces, arrange them together to form a rectangle, and then use the formula for the area of a rectangle to find the area of the parallelogram.
National Council of Teachers of Mathematics
Nctm: Illuminations: Cubes
Use this applet to determine the volume of a box by filling it with cubes, rows of cubes, or layers of cubes. Determine the surface area as well by using the box's net.
National Council of Teachers of Mathematics
Nctm: Illuminations: Shape Tool
This tool allows you to create any geometric shape imaginable. Squares, triangles, rhombi, trapezoids and hexagons can be created, colored, enlarged, shrunk, rotated, reflected, sliced, and glued together.
Better Lesson
Better Lesson: Designing a Restaurant
Understanding area and perimeter can help children work on solutions to very important, real world problems.
Better Lesson
Better Lesson: Using Area as an Architect (Stations Day 1)
In this multi-day activity, 3rd graders make 3 different models of an orphanage floor plan using Google Drawing, Virtual Graph paper, and a construction of rectilinear shapes, to calculate the area of each room using units square.
Better Lesson
Better Lesson: Differences With Shapes
Differences between shapes are determined through measurement skills.
National Council of Teachers of Mathematics
Nctm: Illuminations: Geometric Solids
This tool allows you to manipulate various geometric solids and investigate their properties.
Better Lesson
Better Lesson: How Much Paint Do We Need?
This instructional activity is a real world task that combines many skills the students have learned throughout the school year.
Better Lesson
Better Lesson: Area With Halves
Fractions can be used to understand halves of a unit square.
Better Lesson
Better Lesson: Length X Width
Breaking figures into smaller squares and rectangles allows me to multiply to find the area
Shodor Education Foundation
Shodor Interactivate: Floor Tiles
Build a "floor tile" by dragging the corners of a quadrilateral. Learn about tessellation of quadrilateral figures when the shape you built is tiled over an area.
Better Lesson
Better Lesson: What Is Area?
Area is the concept of covering a region with "unit squares".
Better Lesson
Better Lesson: Building a Dog Kennel Day 3
Third graders will be able to use strategies to solve real-world problems involving area and perimeter.
Better Lesson
Better Lesson: Building a Dog Kennel Day 1
Third graders will be able to use strategies to solve real-world problems involving area and perimeter.
Better Lesson
Better Lesson: Area and Perimeter in Real Life, Day 2
Third graders build models wherein the area remains the same, while changing perimeters.
Quia
Ixl Learning: Types of Quadrilaterals
Brush up on your math skills relating to the types of quadrilaterals then try some practice problems to test your understanding.
PBS
Pbs Learning Media: Cross Sections of a Cube
This interactive exercise focuses on discovering the relationships between two and three-dimensional shapes.
Quia
Ixl Learning: Rectangles
Brush up on your math skills relating to rectangles then try some practice problems to test your understanding.
Quia
Ixl Learning: Squares
Brush up on your math skills relating to squares then try some practice problems to test your understanding.