NSTA - National Science Teachers Association

Waves Do Basic Math--Adding and Subtracting By: William C. Robertson, Ph.D. A chapter from Sound: Stop Faking It! Finally Understanding Science So You Can Teach it Average User Rating: So far we've been dealing with single sources of sound, and how they produce the pitches you hear. But you don't go to the symphony to hear a single oboe, and when you hear a solo guitarist, he or she doesn't keep your attention long by playing only...  [view full summary] So far we've been dealing with single sources of sound, and how they produce the pitches you hear. But you don't go to the symphony to hear a single oboe, and when you hear a solo guitarist, he or she doesn't keep your attention long by playing only one note at a time. So maybe it's a good idea to find out what happens when different sound waves mix together. [hide full abstract] Member Price: $2.79 Nonmember Price: $3.49 Grade Level: Elementary School, Middle School

How Sound Gets Around By: William C. Robertson, Ph.D. A chapter from Sound: Stop Faking It! Finally Understanding Science So You Can Teach it Sound travels in waves, but those waves aren't exactly like waves on a string. One nice things is that sound waves have all the same relationships between frequency, wavelength, and velocity that waves on a string have. In this chapter, we will find...  [view full summary] Sound travels in waves, but those waves aren't exactly like waves on a string. One nice things is that sound waves have all the same relationships between frequency, wavelength, and velocity that waves on a string have. In this chapter, we will find out what sounds waves are like. [hide full abstract] Member Price: $2.79 Nonmember Price: $3.49 Grade Level: Elementary School, Middle School

Stop Children, What's That Sound? By: William C. Robertson, Ph.D. A chapter from Sound: Stop Faking It! Finally Understanding Science So You Can Teach it Aging hippies might recognize the title of this chapter from an old Buffalo Springfield song. Others will just have to ignore it, and realize that this is the first chapter in a book on sound. As you go through this book, you'll be exposed to scientific...  [view full summary] Aging hippies might recognize the title of this chapter from an old Buffalo Springfield song. Others will just have to ignore it, and realize that this is the first chapter in a book on sound. As you go through this book, you'll be exposed to scientific models of what sound is and how it behaves. To get started, though, we're just going to focus on what produces sound and what causes different kinds and qualities of sound—in other words, we're starting with the basics. This free selection includes the Table of Contents and Preface. [hide full abstract] Member Price: Free Nonmember Price: Free Grade Level: Elementary School, Middle School

Waving Strings By: William C. Robertson, Ph.D. A chapter from Sound: Stop Faking It! Finally Understanding Science So You Can Teach it Unless you really haven't been paying attention to the world around you, you know that plucked strings produce sounds. Carlos Santana demonstrates this on a regular basis. Because stringed instruments are so commonly used to produce sounds, we're going...  [view full summary] Unless you really haven't been paying attention to the world around you, you know that plucked strings produce sounds. Carlos Santana demonstrates this on a regular basis. Because stringed instruments are so commonly used to produce sounds, we're going to spend a chapter figuring out what exactly those strings are doing when you pluck them. We're going to be analyzing what happens when you produce waves on strings. These waves produce sounds, but they are not themselves sound waves. [hide full abstract] Member Price: $2.79 Nonmember Price: $3.49 Grade Level: Elementary School, Middle School

Listening Devices By: William C. Robertson, Ph.D. A chapter from Sound: Stop Faking It! Finally Understanding Science So You Can Teach it We've covered most of the basics of how sound is produced and transmitted, but we've left something out, and that's all the electronic devices we use to amplify sound, reproduce it, or get it from one place to another. How exactly does a CD player work?...  [view full summary] We've covered most of the basics of how sound is produced and transmitted, but we've left something out, and that's all the electronic devices we use to amplify sound, reproduce it, or get it from one place to another. How exactly does a CD player work? How does a phone work? And how exactly do those two listening devices we carry on either side of our head work? No, not headphones, even though it might seem that some kids do have those permanently attached. The item in question is our ears. [hide full abstract] Member Price: $2.79 Nonmember Price: $3.49 Grade Level: Elementary School, Middle School

The Hills Are Alive... By: William C. Robertson, Ph.D. A chapter from Sound: Stop Faking It! Finally Understanding Science So You Can Teach it Yep, you guessed it. This chapter is all about music. Yes, we've already talked about music and musical instruments, but we're going to get into this subject in more detail. For example, you might already know that larger musical intruments tend to...  [view full summary] Yep, you guessed it. This chapter is all about music. Yes, we've already talked about music and musical instruments, but we're going to get into this subject in more detail. For example, you might already know that larger musical intruments tend to produce lower notes, but that isn't always true. A clarinet and a flute are about the same size, but the flute produces much higher notes. Why? Stay tuned (a little music humor there) and you'll find out. So, all togther now, "Climb every mountain..." [hide full abstract] Member Price: $4.99 Nonmember Price: $3.49 Grade Level: Elementary School, Middle School

Harmonic Convergence By: William C. Robertson, Ph.D. A chapter from Sound: Stop Faking It! Finally Understanding Science So You Can Teach it Harmonic convergence refers to a day back in 1987 where there was a particular planetary alignment. New Agers went crazy over the event, and if you want to get a taste of what it was like, enter harmonic convergence into your favorite Internet search...  [view full summary] Harmonic convergence refers to a day back in 1987 where there was a particular planetary alignment. New Agers went crazy over the event, and if you want to get a taste of what it was like, enter harmonic convergence into your favorite Internet search engine and sit back and enjoy. This chapter adds to the previous discussion of resonance by expanding the list of vibrating things to metal rods and columns of air. [hide full abstract] Member Price: $2.79 Nonmember Price: $3.49 Grade Level: Elementary School, Middle School