STEM: Inquiry, Connections, Redesign

Presentation on theme: "STEM: Inquiry, Connections, Redesign"— Presentation transcript:

STEM: Inquiry, Connections, Redesign
David Huls, Seth Nelsen Pam Branlund Lakeville South High School

By 2014, students will need a strong foundation in STEM fields to compete for tomorrow’s jobs

The graduates of 2023 will be competing in the global marketplace

The Process of Implementing STEM

Lesh Translation Model
Lesh translation model as a guide for curriculum development. Classroom teachers can use the Lesh translation model to guide how they implement district-adopted curriculum within their classrooms.

Design Projects Windmill Project Introduction to Engineering Projects
With a set budget and prices for materials and tests our groups were to get the highest voltage output possible.

Design Projects “Save the Penguins”
Using various materials and a budget, the task was to keep an ice cube from melting in a very hot atmosphere.

Model Eliciting Activities
MEAs are designed to encourage students to build mathematical models in order to solve complex problems Who’s the fastest runner?

Model Eliciting Activities
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Redesign Activity Redesign blades Experiment with gear ratios
Windmill Redesign Redesign blades Experiment with gear ratios Consider limitations of testing with a fan

Across Subjects Projects can bring in aspects from every subject. From technical writing; to visual arts; to math and science

Activity Make Some Bubbles
Using the materials provided you are going to assemble a device that can cause electrolysis of water A company might use this process someday to fill hydrogen powered vehicles 2 H2O(l) → 2 H2(g) + O2(g)

Tinkering vs Following
Half of the groups were given no instructions and allowed to explore on their own. The other half were given instructions and told how to assemble the device.

Activities We Implemented
Clearing a Path to the Heart Cereal Box Redesign Barbie Bungees Submarine Design

Clearing a Path to the Heart
Goal was to improve the flow of blood through a blocked artery Used everyday materials to reduce the blockage

Clearing a Path to the Heart

Cereal Box Redesign Measure the dimensions of a cereal box and determine the volume and the surface area Redesign the box to contain the same volume but with less surface area Calculate savings in material used Discuss benefits of redesign

Barbie Bungee Jumping How many rubber bands are needed to have Barbie bungee jump closest to the ground without hitting her head? Derive an equation for the number of rubber bands needed for various heights Discuss accuracy of equations

Submarines Design a submarine to: float - sink - float or
sink – float - sink - Incorporated many topics from physical science. - Students notions about when something will sink or float are challenged.

Redesigning “Canned” Labs
Take the instructions away and give a clearly defined question. Results will vary, but students do a lot more thinking and tinkering