7.G.A.3

Geometry Slicer

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Game Info for Teachers

COMBINED RATING

4.2 Stars

TEACHERS (44)

4.5

STUDENTS (8251)

4.0

LENGTH

15 Minutes

GRADES

CAPABILITIES

Spanish Language Support

Text-to-Speech Support

Description

Learn about the two-dimensional shapes that can be made through the manipulation of three-dimensional shapes! Move, cut, and plan ahead to solve challenging puzzles with a great variety of shapes and levels to develop logical reasoning and encourage learning.

Vocabulary Words

plane section

trapezium

trapezoid

circle

square

rectangle

cone

elipse

parallelepiped

pyramid

hexagon

prism

Instructions

Play through this interactive game to learn about Cross Sections of 3D Shapes. Suitable for Grade 6, Grade 7, Grade 8.

Main Concepts

A plane section of a three-dimensional object is a two-dimensional slice formed by an intersection of the object with a plane.

A cross section is a plane section that is a section of a three-dimensional object that is parallel to one of its planes of symmetry or perpendicular to one of its lines of symmetry.

Describe shapes formed by cross sections (square, rectangle, triangle etc).

Any cross-section of such a figure cut by a plane parallel to the original planes is a copy of the base.

Discussion Questions

Before the Game

What is a parallelepiped and what makes it unique? What would be the possible plane or cross-section shapes of a cone, cylinder, pyramid or parallelepiped?

After the Game

What is a plane section of a three-dimensional object? What is a cross section or a three-dimensional object? Can you make any rules on cross sections, plane sections, or diagonal cuts of 3D shapes based on what we explored in the game?

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