# 3D Modeling of Volume and Surface Area

Overview / Description:

Students will create a 3D model comprised of 3 different shapes. This will be done with Play-doh or in Tinkercad.  They will then find the volume and surface area of the composite 3D shape.

Learning goals/objectives:

After completing this activity, students should be able to . . .

• Find the volume of a composite shape.
• Find the surface area of a composite shape.

Content Standards:

#### Wisconsin Standards for Mathematics

Geometric Measurement and Dimension

Explain volume formulas and use them to solve problems

Standards for Mathematical Practice

CCSS.MATH.PRACTICE.MP1 Make sense of problems and persevere in solving them.

CCSS.MATH.PRACTICE.MP4 Model with mathematics.

CCSS.MATH.PRACTICE.MP6 Attend to precision.

Educational Frameworks:

B-LS 2. Demonstrate creativity

B-LS 5. Apply media and technology skills

Materials:

• Computer or Play-doh
• Student sheet (below)
• Calculator
• Lesson plans on volume and surface area, as found on Khan Academy

Learning Activities:

Assessment

Summative Assessment - Collect student worksheet and 3D Model worksheet linked above.

Wrap-Up:

Whole group discussion about the project.

Extension Activity (for intervention or enrichment):

• Students could 3D print their object from Tinkercad and measure the volume and surface area from the object.
• Students could work in pairs or groups on their 3D object and calculations.
• Students could pair-share their objects and calculations at the conclusion of Day 3 with another student/group before submitting for assessment to check for accuracy.