STEM Project – Make your own speakers

Exploring sound in science with your students?

  • How does sound travel?
  • How do different materials absorb sound?
  • How can we amplify sound?

After teaching students about sound and how it works set students the challenge of amplifying your phone. Have students work in groups with each group presenting their ‘speaker’ to the class using your phone as the audio source.

  • What materials worked best?
  • What shapes worked best?
  • What size works best?
  • What other things need to be considered to improve amplification?

 

Click here to access a lesson and resources on sound vibrations.

What is an authentic STEM project? Would creating a phone speaker satisfy the following criteria?

Green Screen Project

Jackie and Madeline have been working with the Year 3/4 class to create green screen videos using the Do Ink app. This is a simple and easy way to add interest and enhance a student’s presentation.

An extension of this activity could be the following as shared by @bhopteacher on Twitter. The student in the video has created their own African jungle diorama which has become the background for a presentation about owls.

 

Who is Rube Goldberg?

Rube Goldberg was born in 1883. In 1904 he graduated Berkley College as an engineer which eventually gave way to him becoming a sports cartoonist for the San Francisco Chronicle. He continued as an editorial cartoonist for the New York Sun and his fame came from a fictional character he created, Professor Lucifer Gorgonzola Butts. Through this character he would illustrate complex inventions later to become known as Rube Goldberg machines.

A “Rube Goldberg Machine” is an extremely complicated device that executes a very simple task in a complex, indirect way. rube-goldberg.com

 

Rube Goldberg in your classroom

How could you use the concept of a Rube Goldberg machine to create a STEM project if a STEM project is defined as the following?

Diagram provided by STEM 500 Primary Educators 

Examples of Rube Goldberg Machines

Click here for an example STEM lesson building a Rube Goldberg machine (NSW Education Standards Authority).

Like to see more Rube Goldberg machines? Just click here!

Green Screen by Do Ink

Green Screen by Do Ink makes it easy to create incredible green screen videos and photos. Classroom-tested by kids and teachers, this app emphasizes ease-of-use and simplicity while still enabling fantastic results. With Green Screen by Do Ink, you can tell a story, explain an idea, and express yourself in truly creative and unique ways. DK Pictures, Inc

“Use Green Screen as part of a project based learning unit…highly recommended..” – Teachers With Apps

“Green Screening and creativity go hand-in-hand.. with the amazing DoInk Green Screen app for the iPad.” – UKedChat

“Recording in it is easy as pie and can be used in elementary, middle or high school.” – Examiner.com

“Do Ink’s excellent Green Screen app is a fantastic addition to the amateur film maker’s armory.” – iPad Insight

“Single best green screen app ever produced…” – iPadEducators

This app is on all of our classroom iPads and combined with the green screen and lighting kit in the STEM centre provides an opportunity for students to create some great videos.

Introduction to Green Screen by Do Ink

 How to use Green Screen by Do Ink