Bear Exploration Center
Magnet Curriculum
2025-2026
Mr. Brown 3rd Grade
Math
Mr. Brown 3rd Grade
Math
Grade Level:
Third Grade
Content Area:
Math
Standards:
MA19.3.11 - Use various strategies to add and subtract fluently within 1000.
MA19.3.17 - Measure lengths using rulers marked with halves and fourths of an inch to generate data and create a line plot marked off in appropriate units to display the data.
MA19.3.20 - Find the area of a rectangle with whole number side lengths by tiling without gaps or overlays and counting unit squares.
MA19.3.21 - Count unit squares (square cm, square m, square in, square ft, and improvised or non-standard units) to determine area.
MA19.3.23 - Decompose rectilinear figures into smaller rectangles to find the area, using concrete materials.
Objective:
In this task students will explore how math and engineering play a significant role in product design. They will be measuring to ¼ inch and determining areas to help design and manufacture a backpack for a specific audience.
Directions:
You are a backpack designer working for a backpack company. Your goal is to design a new unique backpack that will stand out in a crowd. The backpack company you work for will be anxious to see your new design so they can start the manufacturing process. You will start by drawing a sketch of your design, then you will create a prototype that you can present to the company and determine your cost to create the product and how much you will charge the customer to buy it.
Brown Homeroom Backpack Designs - Click to view
Marshall Homeroom Backpack Designs - Click to view