Geometry Pad vs Geoboard, by MLC

With Geometry Pad you can create fundamental geometric shapes, explore and change their properties, and calculate metrics. The shapes are displayed on a scrollable and zoomable workbook with a rectangular coordinate system. The following tools are built into the application: - Point, angle, line, ray, segment, perpendicular bisector, tangent, triangle, quadrilateral, polygon, regular polygon, arc, sector, circle, ellipse, parabola, hyperbola. - Tools to create medians, altitudes and bisectors in a triangle. - Tools to create special triangles and quadrilaterals: right, isosceles, equilateral, square, rectangle, parallelogram and rhombus. - Two additional ways to create an ellipse: by center, end of a major axis, and a point on the ellipse; by focus points, and a point on the ellipse. - Compass tool to plot arcs with an easily adjustable center and radius. - Pencil tool to draw freehand annotations. - Text annotations and labels with mixed-in metrics such as length, angle, perimeter, equation, etc. - Transformation tools: rotation, reflection, enlargement, translation. - Create lines and triangles with predefined parameters such as equation of a line, and angles or sides of a triangle. - Insert images into the document. Each shape has a set of customizable properties such as color, width, background, etc. Shape metrics are automatically calculated and presented along with shape properties. Some of them are editable such as point location, line length, circe radius, etc. Snapping is deeply integrated into the application. Snap-to-grid and snap-to-objects allow for precise constructions. Additionally, lines can snap to parallel, perpendicular and tangent lines. Snapping can be easily turned on/off in the quick snapping settings window. Documents can be saved to your device, iCloud or to Dropbox. Export formats include PDF and image. Additionally, PDF documents can be opened within the app, annotated using any of the built in tools and exported as PDF again. Your suggestions are welcomed and appreciated. Just select Feedback under the app menu and write us an e-mail.

Geoboard is a tool for exploring a variety of mathematical topics introduced in the elementary and middle grades. Learners stretch bands around the pegs to form line segments and polygons and make discoveries about perimeter, area, angles, congruence, fractions, and more. This virtual version of the manipulative is an open-ended educational tool, ideal for elementary classrooms and other learning environments. FEATURES • Create line segments and polygons by stretching bands around the Geoboard’s pegs. • Choose from 8 different band colors. • Fill individual shapes with a transparent color, or use the Fill All button to toggle all the bands between filled and unfilled. • Switch between the standard 25-peg square board, a rectangular board with 150 pegs, or a circular board with 13 pegs. The circular board enables explorations with angles, fractions, and time measurement. • Duplicate shapes then move, rotate, or flip them to explore symmetry and congruency. • Change the color of selected bands. • Display grid lines with or without numbering to more easily calculate area and identify shape locations. •Hide and reveal work with resizable covers to create your own problems and model strategies. • Use the drawing tools to annotate work and show understanding. • Add equations, expressions, and descriptions with the math text and writing tools. • Share your work by saving an image or providing a share code to others. MORE APPS For more Geoboard resources and other apps, visit:www.mathlearningcenter.org/apps LEARN MORE To learn about Bridges in Mathematics, an elementary curriculum that employs visual models such as the geoboard, please visit: www.mathlearningcenter.org/bridges/overview ABOUT US This app is brought to you by The Math Learning Center, a nonprofit organization dedicated to K-12 math education since 1976. ACKNOWLEDGEMENTS The Geoboard app was made possible by a generous donation from Dr. David Moursund. This app was crafted by Clarity Innovations. We help improve teaching and learning by creating solutions that match promising technologies with the needs of education.  Visit us at: www.clarity-innovations.com