HW: Finish Problem 1.2 pg 10 #1-6 Do Now4/2/14 Find the area of this composite figure (a figure made up of other shapes). 208cm².

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Presentation transcript:

HW: Finish Problem 1.2 pg 10 #1-6 Do Now4/2/14 Find the area of this composite figure (a figure made up of other shapes). 208cm²

Unit Goal Understand volume as a measure of filling an object and surface area as a measure of wrapping an object.

Intro to 3D Measurement Filling & Wrapping Pg 2-3 What types of things come in boxes? What constraints (rules) might companies have about the boxes? Are there any special types of boxes?

Cubes What does a cube look like? What features of a cube can we count? We call the corners vertices. How many vertices are there? How many edges does a cube have? We call the sides faces. How many faces does a cube have? Whats special about the faces?

Investigation 1 – Building Boxes Page 5

Problem 1.1 Work with your group to create as many nets as you can that will form closed cubes. Use grid paper and scissors to cut them out, fold them, and see if they work! Make a sketch in your notebook of each net that forms a cube.

Problem 1.1 How many nets did we find? Cube Nets What is the total area needed to cover a unit cube?

Problem 1.2 Using the same ideas you had when constructing nets for cubes, try making them for rectangular boxes by completing Problem 1.2 Work with your group Finish for Homework (along with pg 10 #1-6)

Homework Finish Problem 1.2 Pg 10 #1-6