Reflection: Complex Tasks Invisible Boxes - Section 2: Warm up


This task may seem really simple on the surface, but the students really needed to make sense of what the dimensions represented. Students have to think about the shape of the faces since the one that is 6 square units could be 6x1 or 2x3. They have to think about how the faces fit together in order to figure out the dimensions of each face and then relate the individual dimensions to the dimensions of the rectangular prism. This is the conflict I want them to resolve because this is where they are most likely to discover the generalized procedure. It is only through visualizing how the faces fit together that helps students make the necessary connections. If students need a little more scaffolding I might change the prompt to say that the "front and back" faces of the box have an area of 6 square units, the "top and bottom" etc. This helps them think about which faces connect.

  Productive struggle
  Complex Tasks: Productive struggle
Loading resource...

Invisible Boxes

Unit 9: Exploring Surface Area
Lesson 6 of 6

Objective: SWBAT calculate the surface area of prisms when given only the dimensions.

Big Idea: The dimensions of the individual faces is related to the dimensions of the rectangular prism.

  Print Lesson
Add this lesson to your favorites
individual think time
Similar Lessons
Density of Gases
8th Grade Science » Heat Transfer and Interactions of Matter
Big Idea: This investigation uses a simple method that allows for capturing the gas released from a chemical reaction to help students determine the density of the released gas.
Brookline, MA
Environment: Urban
Ryan Keser
Perimeter of Irregular Rectilinear Shapes
7th Grade Math » Geometry
Big Idea: Students use the properties of rectangles to discover missing dimensions.
New Orleans, LA
Environment: Urban
Grant Harris
Area of Irregular Figures - How do you break up a figure?
7th Grade Math » Geometric Measurement
Big Idea: Expert students will lead the lesson as students apply prior knowledge of area to composite figures.
Elon, NC
Environment: Suburban
Heather Stephan
Something went wrong. See details for more info
Nothing to upload