Kentucky Dam, the lowermost and the largest of the multiple-purpose projects of the Tennessee River system, is the key to effective control of discharges from the Tennessee, the largest tributary of the Ohio River. Located at river mile 22.4, Kentucky Dam is only 67.4 river-miles above Cairo, Illinois, and its large reservoir with more than 4,000,000 acre-feet of flood storage capacity occupies as strategic position for the reduction of flood crests on the lower Ohio and Mississippi Rivers. The navigation lock at this project forms the lower gateway to the 184-mile long Kentucky Reservoir, one of a chain of nine reservoirs extending a year-round 9-foot navigation channel more than 600 miles to Knoxville, Tennessee, and connects this system of reservoirs to the major inland waterways of the great central Mississippi Valley with outlets for navigation to the Great Lakes and the Gulf of Mexico.

This approach to teaching basic math facts, grounded in years of research, will transform students' learning of basic facts and help them become more confident, adept, and successful at math. Mastering the basic facts for addition, subtraction, multiplication, and division is an essential goal for all students. Most educators also agree that success at higher levels of math hinges on this fundamental skill. But what's the best way to get there? Are flash cards, drills, and timed tests the answer? If so, then why do students go into the upper elementary grades (and beyond) still counting on their fingers or experiencing math anxiety? What does research say about teaching basic math facts so they will stick? In Math Fact Fluency, experts Jennifer Bay-Williams and Gina Kling provide the answers to these questions—and so much more. This book offers everything a teacher needs to teach, assess, and communicate with parents about basic math fact instruction, including The five fundamentals of fact fluency, which provide a research-based framework for effective instruction in the basic facts. Strategies students can use to find facts that are not yet committed to memory. More than 40 easy-to-make, easy-to-use games that provide engaging fact practice. More than 20 assessment tools that provide useful data on fact fluency and mastery. Suggestions and strategies for collaborating with families to help their children master the basic math facts. Math Fact Fluency is an indispensable guide for any educator who needs to teach basic math facts.

This book documents the highly technical exploration and mapping of three long caves in the Bald Knob region of Edmonson County, Kentucky. The author, an accomplished member of the elite team of spelunkers that has been pursuing the explorations for over sixty years, has gathered records, logs, photographs, first-person accounts, and countless recollections to make a comprehensive record of the unique challenge of exploring and documenting one of the world's great cave systems, one which challenges even expert cavers and which will be seen by only a few for that reason. The primary caves described are James Cave, Coach Cave, and Jackpot Cave, all near and somewhat geologically contiguous with Mammoth Cave.