1 Use a single variable to create a problem situation based on a given open sentence. 2  Use input/output model with grade appropriate functions. 3  Use symbols to represent unknown quantities in number sentences.  Use the identity property of multiplication on whole numbers in computations and problem situations.
The Manhattan Project was the government project that took place from 1942 to 1946, the purpose of which was to develop a nuclear bomb. It succeeded on 16 July 1945 at the Trinity Test in New Mexico and went on to produce the two atomic bombs that destroyed the Japanese cities of Hiroshima and Nagasaki during WWII.
The Manhattan Project. World War II started on September 1 1939, when Germany attacked Poland. By 1941, the Germans were ahead in the race for the atomic bomb. They had a heavy-water plant, high-grade uranium compounds, capable scientists and engineers, and the greatest chemical engineering industry in the world.he program that developed the atomic bomb for the United States during World War II was the largest secret project ever undertaken by the U.S. government. The project was originally named Development of Substitute Materials, but there was concern that the name was too suggestive of its real purpose.