Vol. 1. Paul J. Reinbold and David R. Burgess. Nashua, N.H.: Captivation, 1996.

**Recommended grade level: 5-8.** Volume 1 of *The Teaching Tank Discovery Book* contains directions for 50 activities meant to be done with a simple device called a "teaching tank"—a 2-sided Plexiglas container. The activities, many of which are demonstrations, cover a wide range of topics in the life, earth, and physical sciences. For example, students use the tank for observing root growth, for growing stalactites and stalagmites, or for predicting and observing the effect of wind on evaporation rate. They also use it to observe the work of enzymes in the digestion of foods, to observe a model of the internal gaseous forces within a volcano, or to measure the mass of various solids.

Each lesson includes a list of objectives, a materials list, a reference diagram showing how the tank is used, step-by-step procedures, thought-provoking questions for students, and brief teaching notes or explanations of results.

* Price:* Teacher's guide (ISBN 0-9633907-0-8), $21.95. Teaching tank, $32.95.

Vol. 2. Gordon Corbett and David R. Burgess. Nashua, N.H.: Captivation, 1996.

**Recommended grade level: 5-8.** Volume 2 of *The Teaching Tank Discovery Book* contains directions for 50 activities meant to be done with a simple device called a "teaching tank"—a 2-sided Plexiglas container. The activities, many of which are demonstrations, cover a wide range of topics in the life, earth, and physical sciences. For example, students use the tank for determining that displacement is essential to the functioning of a submarine, for observing the influence of temperature on the action of yeast, or for demonstrating that surface tension of water can be broken by soap or detergent. They also use it for observing the separation of plant pigments using paper chromatography or for creating a model of a thermocline.

Each lesson includes a list of objectives, a materials list, a reference diagram showing how the tank is used, step-by-step procedures, thought-provoking questions for students, and brief teaching notes or explanations of results.

* Price:* Teacher's guide (ISBN 0-9633907-1-6), $21.95. Teaching tank, $32.95.

James LaPorte and Mark Sanders. Developed by TSM [Technology Science Mathematics] Integration Project, Virginia Polytechnic Institute and State University (Blacksburg, Va.). New York, N.Y.: Glencoe/McGraw-Hill, 1996.

**Recommended grade level: 7-8+.** This unit, in a 3-ring-binder format, contains 6 problem-solving activities designed to facilitate team teaching among technology, science, and mathematics teachers. (The activities are for 3-teacher teams, but implementation suggestions are given for pairs or individual teachers.) During the unit, students must simultaneously apply the concepts, principles, and skills they learn in 3 subject areas—science, mathematics, and technology—to design, construct, and evaluate solutions to stated problems. They are asked to design, construct, and evaluate a working model of a self-propelled toy power boat, a composite beam made from 2 or more recyclable materials, an insulation panel, a magnetically levitated vehicle, a model hydroponic farming system, and a model rocket.

A typical activity requires several days to a week in science and mathematics classes and 1 to 3 weeks in a technology laboratory. Each activity has an introductory overview that provides a general idea of the activity and its goal, followed by the technology, science, and mathematics components. In developing a working model of a toy powerboat, for example, students design, construct, and test their boat hulls and propulsion systems in technology class; they study Newton's laws of motion, as well as buoyancy and conservation of energy in science class; and they study symmetry, balance, volume, and surface area in mathematics class.

Each activity includes a suggested sequence of instruction, background information, resources, teaching notes for the different components, questions to guide student discussion and thinking, reproducible student sheets, and links to standards of the National Council of Teachers of Mathematics. Each activity is also correlated with Glencoe textbooks in technology, science, and mathematics.

* Price:* Teacher's resource binder (ISBN 0-02-636947-8), $64.46.

Technology-Based Solutions series. Developed by Twin Discovery Systems. Freeport, N.Y.: Educational Activities, 1995.

**Recommended grade level: 6-8.** *Thematic Applications: Sciences II* is a CD-ROM with 67 computer-based activities that allow students to learn about topics in environmental, life, earth, and physical science. The activities, which can be completed individually or collaboratively, incorporate computer literacy, mathematics, writing, science, social studies,