Covering and Surrounding: Investigation 5: Measuring Irregular Shapes and Circles |
MMS Math
Essentials &
Vocabulary Vocabulary on this page Parents Help Links on this page Textbook Index, Glossary, etc. Textbook Investigation and slides Student Edition |
Geoboard – Use geoboards to illustrate area, perimeter, and rational number concepts. | |
Geoboard - Circular – Use circular geoboards to illustrate angles and degrees. | |
Geoboard - Coordinate – Rectangular geoboard with x and y coordinates. | |
Geoboard - Isometric – Use geoboard to illustrate three-dimensional shapes. |
Circle: find the circumference and the area.
Area and Perimeter
Concept
with Explanation
Selected
Homework from ACE
In Covering and Surrounding student work with investigations leads them
to:
Understand area and relate area to covering a figure;
Understand perimeter and relate perimeter to surrounding a figure;
Develop strategies for finding areas and perimeters of rectangular shapes and non-rectangular shapes;
Discover relationships between perimeter and area. including that each can vary while the other stays fixed;
Understand how the areas of simple geometric figures relate to each other (e.g. the area of a parallelogram is twice the area of a triangle with the same base and height);
Develop formulas and procedures-stated in words and/or symbols-for finding areas and perimeters of rectangles, parallelograms, triangles, and circles;
Develop techniques for estimating the area and perimeter of an irregular figure; and
Recognize situations in which measuring perimeter or area will help answer practical questions.
Vocabulary |
Picture | Vocabuary |
angle | |
Circle | |
radius | |
diameter | |
pi | |
circumference | |
area | |
perimeter | |
base | |
height | |
length | |
width |