300 Science Quizzes: 150 Capital city quizzes, 120 Chemistry and Periodic Table quizzes, 20 Astronomy picture-quizzes and 10 questions about the speed of light for middle and high school students.
Middle-School (grades 5 through 9) math program written to provide skills in context. Students choose one of two types of problems: ruler fractions (halves, fourths, eighths, sixteenths) or regular fractions. Students must add the given three fractions. Every problem is illustrated with an interactive sketch.
Middle-School (grades 5 through 9) math program written to provide skills in context. Students write and solve simple algebra problems, then manipulate the vertices of an on-screen triangle so that it matches given information about its angles. Sample problem: "Make triangle ABC so that m
Middle-School (grades 5 through 9) math program written to provide skills in context. Given the radius or diameter of a circle, and the measure of a central angle, students must find the following: the area of the circle; the area of the sector defined by the central angle; the circumference of the circle; the length of the arc defined by the central angle. All answers are rounded to the nearest hundredth.
Middle-School (grades 5 through 9) math program written to provide skills in context. Students use sets of data to construct on-screen box and whisker plots.
Middle-School (grades 5 through 9) math program written to provide skills in context. Students are shown a Cartesian plane across which a small dot moves. Students try to "capture" the dot by typing in its current or anticipated coordinates.
Middle-School (grades 5 through 9) math program written to provide skills in context. Students must place four quarters, four dimes, four nickels, and four pennies on a 4 by 4 grid so that the rows and columns sum to given values. The program generates hundreds of problems on two levels of difficulty.
Middle-School (grades 5 through 9) math program. Students solve crossnumber puzzles by evaluating simple expressions. Program uses only positive integers.