Students play and record the “Mary Had a Little Lamb” song using musical instruments and analyze the intensity of the sound using free audio editing and recording software. Then they use hollow Styrofoam half-spheres as acoustic mirrors (devices that reflect and focus sound), determine the radius of curvature of the mirror and calculate its focal length. Students place a microphone at the acoustic mirror focal point, re-record their songs, and compare the sound intensity on plot spectrums generated from their recordings both with and without the acoustic mirrors. A worksheet and KWL chart are provided.

Beginners' French: Food and Drink

The students will learn how to talk about food in French. In particular, they will learn how to say what food they like and dislike using the verbs aimer (‘to like’), adorer (‘to love’), and préférer (‘to prefer’) and the negative structure ne … pas.

French III
Unit- Les Vacances

Students should be able to:
understand people talking about where and when they take their holidays and why
make a short oral presentation about personal holiday plans

Students will practice basic clothing vocabulary along with colors and prices. Students will also work on the dialogue "Dans un magasin de vêtements."

The students will discover the vocabulary by clicking on images. Each word has associated sound to facilitate the pronunciation of learners in French.

Great homework assignment/quiz preparation
Interactive activities can be downloaded.

This topic will assist you in developing online communication and Internet learning skills. It is based on the principles of networked learning where individuals establish an online identity and formulate relationships with other people and information to communicate and develop knowledge.

This article profiles Gerrit Vyn and Martha Fischer, sound recordists with the Macaulay Library, Cornell University, and their expedition to Nunavut, Canada, to record male sanderling vocalizations.

Beginners' French: Food and Drink

The students will learn how to talk about food in French. In particular, they will learn how to say what food they like and dislike using the verbs aimer (‘to like’), adorer (‘to love’), and préférer (‘to prefer’) and the negative structure ne … pas.

Beginners' French: Food and Drink

The students will learn how to talk about food in French. In particular, they will learn how to say what food they like and dislike using the verbs aimer (‘to like’), adorer (‘to love’), and préférer (‘to prefer’) and the negative structure ne … pas.

Students learn the connections between the science of sound waves and engineering design for sound environments. Through three lessons, students come to better understand sound waves, including how they change with distance, travel through different mediums, and are enhanced or mitigated in designed sound environments. They are introduced to audio engineers who use their expert scientific knowledge to manipulate sound for music and film production. They see how the invention of the telephone pioneered communications engineering, leading to today's long-range communication industry and its worldwide impact. Students analyze materials for sound properties suitable for acoustic design, learning about the varied environments created by acoustical engineers. Hands-on activities include modeling the placement of microphones to create a specific musical image, modeling and analyzing a string telephone, and applyling what they've learned about sound waves and materials to model a controlled sound room.

Students learn about sound and sound energy as they gather evidence that sound travels in waves. Teams work through five activity stations that provide different perspectives on how sound can be seen and felt. At one station, students observe oobleck (a shear-thickening fluid made of cornstarch and water) “dance” on a speaker as it interacts with sound waves (see Figure 1). At another station, the water or grain inside a petri dish placed on a speaker moves and make patterns, giving students a visual understanding of the wave properties of sound. At another station, students use objects of various materials and shapes (such as Styrofoam, paper, cardboard, foil) to amplify or distort the sound output of a homemade speaker (made from another TeachEngineering activity). At another station, students complete practice problems, drawing waves of varying amplitude and frequency. And at another station, they experiment with string (and guitar wire and stringed instruments, if available) to investigate how string tightness influences the plucked sound generated, and relate this sound to high/low frequency. A worksheet guides them through the five stations. Some or all of the stations may be included, depending on class size, resources and available instructors/aides, and this activity is ideal for an engineering family event.

Tex's French Grammar combines explanations with surreal dialogues and cartoon images.
Individual grammar items are carefully explained in English, then exemplified in a dialogue, and finally tested in self-correcting, fill-in-the-blank exercises.

This article provides an overview of the free online tool VoiceThread and discusses how elementary teachers might use it in language arts and science classes. Resources provided.