Students will complete the surveyor wheel challenge where they are making their own surveyor wheel using different size wheels and use it to measure various walking distances. They design a course for a 5K race on their school grounds. Through the challenge and 1 or 2 follow-up lessons, the mathematical purpose to deepen understanding and use the proportional relationship between number of rotations and distance traveled by the wheel (7.RP.A) and a greater understanding of the relationship between diameter and circumference (7.G.B.4, if students are already familiar with this relationship). They will engage in mathematical practices 5 (appropriate tools) and 6 (attending to precision).
Building a maker mindset (link)
Other mathematical purposes: Scale drawings 7.G.A.1
This maker lesson cycle can be used to gain a deeper understand about the relationship between diameter (D) and circumference (C) of a circle: $C = \pi\cdot D$. In this case students should already be familiar with this relationship. This activity is not intended to be used to introduce it.
|Variety of measuring tools such as yardsticks, measuring tapes.||1 of each per group||challenge lesson, warm-up|
|Wooden yardsticks or rulers (with a hole at one end, or a drill to make holes)||1 per group||challenge lesson, activity|
|Tape||1 per group||challenge lesson, activity|
|Fasteners||3 per group||challenge lesson, activity|
|Paper plates of different sizes (typical sizes are 6-12 inches)||3 per group (to make revisions) or 1 per group and extras that students have access to if they want to start over||challenge lesson, activity|
|Piece of cardstock (index card or business cards work well)||3 per group||challenge lesson, activity|
Learning Cycle Wrapup:
Progress in Standards for Mathematical Practice assessment
Progress in Mathematical content assessment
Progress in Maker mindset assessment
[questions and discussion for teacher reflection after teaching learning cycle]