Day 1

​​Each group needs:

• 1 3-lb weight (flat plate weight or bagged sand)
• 12-24 inches of string or thin rope
• Five strips (approximate sizes of 4-6” x 24-36”) of different surfaces. You can choose any surfaces. Examples include the following:
• high-pile carpet (can get samples/swatches for free from big box home improvement store)
• low-pile carpet (can get samples/swatches for free from big box home improvement store)
• marine carpet
• low grit number sandpaper
• bubble wrap
• aluminum foil
• felt
• artificial turf
• wax paper
• foam or rubber mat
• fabric
• Day 1: Student Drag Inquiry Activity Sheet (1 per student)

Day 2

​​Each group needs:

• Day 2: Polarizing Collaboration – Problem-Solving Challenge in the Minga Tradition (1 per student)

For the entire class to share:

• 1 laptop computer with internet access and projector (to show YouTube video to class)

Day 3

​​Each group needs:

• 1 3-lb weight (flat plate weight or bagged sand)
• 12-24” of string or thin rope
• 1 Newton scale/spring scale
• Day 3: IMA/AMA, Hypotheses, and Calculations (1 per student)

For the entire class to share:

• 1 laptop computer with internet access and projector (to show IMA/AMA Calculations Presentation and YouTube video to class)
• Five strips (4-6” x 24-36” strips) of turf, carpet, bubble wrap, vinyl flooring and felt. (or substitutions as appropriate.) Cut enough for each group or put all five strips a general area where students can test dragging their weights.

Day 4

​​Each group needs:

• 1 3-lb weight (flat plate weight or bagged sand)
• 1 2-24” of string or thin rope
• 1 Newton scale/spring scale
• scissors
• glue or tape
• Day 4: Using Engineering Design Process, IMA/AMA, Hypotheses, and Calculations (1 per student)
• access to commonly discarded items, large enough to hold weights, such as the following:
• empty plastic jug or bottle
• dog or cat food bag
• empty flour or rice bag
• other recyclable materials

For the entire class to share:

• testing apparatus (created by you before the activity; see Before the Activity section for instructions on how to create)
• hot glue, white glue, or wood glue
• scissors
• 1 24” x 48” plywood board
• 4-6” x 24-36” strips of the following surfaces (suitable substitutions can be made):
• turf
• carpet (can get samples/swatches for free from big box home improvement store)
• bubble wrap
• vinyl flooring
• felt

Day 5

Each group needs:

• 1 3-lb weight (flat plate weight or bagged sand)
• 12-24” of string or thin rope
• 1 Newton scale/spring scale
• scissors
• glue or tape
• Day 5: Redesign Using Engineering Design Process, IMA/AMA, Hypotheses, and Calculations (1 per student)
• Engineering Design Challenge Rubric (1 per group)
• access to commonly discarded items, large enough to hold weights, such as the following:
• empty plastic jug or bottle
• dog or cat food bag
• empty flour or rice bag
• other recyclable materials

For the entire class to share:

• testing apparatus (created by you before the activity; see Before the Activity section for instructions on how to create)