3-5
In this lesson, students discover the uses of geometry and measurement in the world of architecture as they are introduced to the clubhouse project.
3-5
In this lesson, students draw a two-dimensional blueprint of their clubhouse using graph paper.
3-5
In this lesson, students build a three‑dimensional model from their two‑dimensional blueprint. In addition, they solve problems related to constructing and decorating their clubhouse.
3-5, 6-8
The
Stomachion is an ancient tangram-type puzzle. Believed by
some to have been created by Archimedes, it consists of 14 pieces cut
from a square. The pieces can be rearranged to form other interesting
shapes. In this lesson, students learn about the history of the
Stomachion, use the pieces to create other figures, learn about symmetry and transformations, and investigate the areas of the pieces.
3-5
Students explore ways of building different basic shapes from triangles. They also investigate the basic properties of triangles, as well as relationships among other basic geometric shapes.
3-5
Students explore the importance of the side lengths of a triangle and when triangles can or cannot be constructed on the basis of these lengths.
3-5, 6-8
Students identify patterns in a geometrical figure (based on triangles) and build a foundation for the understanding of fractals.
3-5, 6-8
Students hear geometry terminology around them every day. By playing the games in this lesson, students use their knowledge regarding regular and irregular polygons to explore the properties of the shapes and learn new vocabulary when identifying characteristics of shapes.
3-5, 6-8
Who can build the best boat? In this lesson, students are challenged to create aluminum foil boats that are then tested by filling them with plastic bears until they sink. The lesson serves as a fun, hands-on way to collect data. The data from two attempts is collected and used to make two class box-and-whisker plots with some surprising results.
3-5
Students decompose 2-digit numbers, model area representations using the distributive property and partial product arrays, and align paper-and-pencil calculations with the arrays. The lessons provide conceptual understanding of what occurs in a 2-digit multiplication problem. Partial product models serve as transitions to understanding the standard multiplication algorithm.
