This short video and interactive assessment activity is designed to teach third graders about perimeter in grid.
This short video and interactive assessment activity is designed to teach third graders about perimeter of squares and rectangles.
This short video and interactive assessment activity is designed to teach third graders an overview of area and perimeter.
This short video and interactive assessment activity is designed to teach third graders about given the perimeter, find the side length and area - squares.
Create your own shapes using colorful blocks and explore the relationship between perimeter and area. Compare the area and perimeter of two shapes side-by-side. Challenge yourself in the game screen to build shapes or find the area of funky figures. Try to collect lots of stars!
Build rectangles of various sizes and relate multiplication to area. Discover new strategies for multiplying algebraic expressions. Use the game screen to test your multiplication and factoring skills!
- Material Type:
- University of Colorado Boulder
- Provider Set:
- PhET Interactive Simulations
- Amanda McGarry (co-lead)
- Amy Hanson (lead designer)
- Ariel Paul
- Diana Lopez Tavares (artwork)
- Jonathan Olson (developer)
- Karina Hensberry
- Kathy Perkins
- Mariah Hermsmeyer (artwork)
- Susan Miller
- Date Added:
This short video and interactive assessment activity is designed to teach third graders an overview of area of squares and rectangles - word problems.
This lesson plan is intended to support students as their learn how to create 2 different shapes with the same area, but a different perimeter, or vice versa. The lesson plan has a link to a resource online found through eMedia.
The purpose of this task is to strengthen students' understanding of area. It could be assigned in class to individuals or small groups or given as a homework exercise to generate interesting discussions the following day. The relatively high levels of complexity and technical demand enhance its instructional value.
Explore size estimation in one, two and three dimensions! Multiple levels of difficulty allow for progressive skill improvement.
The goal of this task is to use geometry study the structure of beehives. Beehives have a tremendous simplicity as they are constructed entirely of small, equally sized walls. In order to as useful as possible for the hive, the goal should be to create the largest possible volume using the least amount of materials. In other words, the ratio of the volume of each cell to its surface area needs to be maximized. This then reduces to maximizing the ratio of the surface area of the cell shape to its perimeter.
This goal of this task is to give students familiarity using the formula for the area of a circle while also addressing measurement error.
This interactive Flash animation allows students to explore size estimation in one, two and three dimensions. Multiple levels of difficulty allow for progressive skill improvement. In the simplest level, users estimate the number of small line segments that can fit into a larger line segment. Intermediate and advanced levels offer feature games that explore area of rectangles and circles, and volume of spheres and cubes. Related lesson plans and student guides are available for middle school and high school classroom instruction. Editor's Note: When the linear dimensions of an object change by some factor, its area and volume change disproportionately: area in proportion to the square of the factor and volume in proportion to its cube. This concept is the subject of entrenched misconception among many adults. This game-like simulation allows kids to use spatial reasoning, rather than formulas, to construct geometric sense of area and volume. This is part of a larger collection developed by the Physics Education Technology project (PhET).
Students will have to solve the real world problem of locker smell leakage by building an air filter that will cover the vents on the top of a locker. This project goes well with a curriculum on the particle nature of gases and phase changes.