Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 7–10 Professional Commentary: This applet demonstrates how the Greek mathematician, Archimedes, approximated the value of pi by inscribing and circumscribing polygons about a circle. Student can use the slide bar at the bottom of the applet to increase the number of sides, n, of inscribed and circumscribed polygons for two circles. The first circle is a unit circle which has has an area of pi.... Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 5–7 Professional Commentary: This applet is designed to develop a student's understanding of the connection between percent notation and the 100’s grid representation. The applet features three types of student tasks, and can be used to explore percentages greater than 100. In task one, the student is given a percentage and asked to shade the corresponding portion of a hundreds grid by clicking hundredths squares. Above the grid, a percentage indicates what portion of the grid is shaded. A second task allows the student to represent percentages of their choice on the grid.... Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 5–8 Professional Commentary: This applet is designed to develop a student's understanding of percentages as a way to express a fraction, a part of a whole, as a portion of 100. Using the applet, the student can name any two of the three quantities in a part-to-whole percent equation.... 664 Equivalent Fractions Finder Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 3–4 Professional Commentary: This applet allows the student to visually experiment with fractional representations using area models and number lines. To begin, a fraction is displayed on a number line and with an area model.... 665 Bounded Fraction Pointer Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 3–4 Professional Commentary: This applet allows the student to visually experiment with fractional representations using area models and number lines. After selecting two boundary fractions, the fractions are shown on a number line and the student constructs an area model within a square or a circle for each fraction.... Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 3–12 Professional Commentary: The site contains a virtual Tower of Hanoi puzzle. The puzzle, invented by the French mathematician Edouard Lucas in 1883, traditionally begins with eight disks stacked in increasing size on one of three pegs.... Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades K–7 Professional Commentary: This online tool offers a virtual set of pattern blocks that can be used with traditional pattern block activities such as building understanding of fractions, creating tessellations, and exploring symmetry, translations, and rotations. The tool provides an unlimited number of triangle, square, large rhombus, small rhombus, trapezoid, and hexagon virtual blocks. The tool work space is in a grid format which will help students get a sense of the shapes and their sides and angles.... 668 Tutorials for High School Mathematics Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 8–12 Professional Commentary: Tutorials for High School Mathematics presents twenty-six online tutorial lessons designed to help students and adults review high school mathematics topics. The topics are basic to student success in post-secondary science, computer science, and engineering courses.... Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 6–12 Professional Commentary: The Stella's Stunners website features a collection of challenging and entertaining mathematical problems to intrigue students in grades 6 - 12. The Stella problems are ideal for promoting inquiry, problem solving, and classroom discussion of key mathematical ideas.... Resource Type: Content Resource Discipline: Mathematics Ohio Standards Alignment: Grades 4–8 Professional Commentary: With this online, interactive puzzle, students are challenged to add positive one-place decimals to sum to three. The puzzle shows seven overlapping circles with some numbers already in the circles when the manipulative loads. The numbers from 0.4 through 1.7 can be dragged into (or removed from) any empty space in the ring of circles to create sums of 3. Students must use logical... |