Math--Chapter 30

Chapter 30: Solid Figures and Volume

Lesson 1: Faces, Edges, and Vertices. Objective: To identify solid figures by their faces, edges, and vertices.

Lesson 2: Patterns for Solid Figures. Objective: To identify solid figures by their patterns.

Lesson 3: Estimate and Find Volume of Prisms Objective: To estimate and find the volume of rectangular prisms.

Lesson 4: Problem Solving Skill: Too Much/Too Little Information. Objective: To solve problems by using the skill too much/too little information.


Vocabulary: polygon, dimension, two-dimensional, three-dimensional, face, triangular prism, triangular pyramid, edge, vertex, net, volume, cubic units

polygon: a closed place figure with straight sides

dimension: a measure in one direction

two-dimensional: measured in two directions, such as length and width

three-dimensional: measured in three directions, such as length, width, and height

face: a polygon that is a flat surface on a solid figure

triangular prism: a solid figure with two triangular bases and three rectangular faces

triangular pyramid: a pyramid that has a triangular base and three triangular faces

edge: the line segment where two faces meet on a solid figure

vertex: a point where three or more edges meet on a solid figure; the top point of a cone

net: a two-dimensional pattern formed by polygons that can be folded to make a three-dimensional figure

volume: the measure of the space that a solid figure occupies

cubic units: units of volume with dimensions of 1 unit x 1 unit x 1 unit


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