StarMap 3D vs Hands

Use your iPhone's compass and gyroscope to find planets, constellations, and more with crisp, colorful, high-definition Retina graphics that use every pixel of your iPhone! Hold the universe in your pocket! • Try StarMap 3D Plus for iPad support, more stars, thousands of Deep Sky Objects, and original constellation artwork. StarMap 3D is the portable star atlas for beginners or advanced astronomers. Use StarMap 3D to find the planets, stars, constellations, star clusters, galaxies, and nebulae visible to you based on your location and time. StarMap 3D will even use the compass to automatically align the map! • Retina Display Compatibility • Over 15,000 stars, with detailed information for each of them • 303 deep sky objects, with details such as distance from Earth, diameter, apparent size and orientation, and morphology • All 88 modern constellations, with lines based on the outlines from "The Stars: A New Way to See Them" by H.A. Rey • MacRobert and Classic constellation lines also available • Location-based-services (LBS) / Global Positioning System (GPS) support, or manually enter your longitude and latitude • Adjustable date and time of day • Also adjust time instantaneously and interactively with the Time Scroll feature • Compass support, if present • Planetarium Mode for seeing only objects visible to you, or browse the entire celestial sphere • 3D Mode for visualizing the universe in three dimensions

Hands-On Math: Pentominoes creates a virtual math playground where students explore, investigate and discover mathematical concepts. Students use the classic 7-piece set of tangram pieces on an interactive playground to discover and explore, visual problem solving, geometry, fractions, angles, shapes, and much more. Using Hands-On Math: Pentominoes students can develop the following important mathematical concepts: • Shapes and Properties • Logical Patterns and Sequences • Meaning of Fractions • Classifying Figures and Measurement • Creativity and Design Features: • Open-ended Pentominoes Playground. • Supports Discovery and Directed Teaching Strategies. • Problem Solving Activities which Can Be Solved Using Virtual Manipulatives. • Helps to Build an Intuitive Understanding of Geometry. • On/Off Options and Controls for Various Features. Pentominoes Playground There are 12 permutations for geometric figures made up of 5 squares. The pieces collectively are known as pentominoes. In this app the pieces are provided for use on the Hands-On Math Playground. The Playground offers a snap-to grid function and pieces can be placed, moved, arranged, rotated and grouped in order to represent mathematical ideas. Topics: • The Properties of Geometric Shapes • Visual Problem Solving • Fractions (Shading Parts of a Whole) • Congruence and Similarity • Symmetry • Rotations and Translation Activities Students use a slider or buttons to select an activity. Here is a sample activity where the object is to move the correct pentomino pieces into the space in order to completely cover the congruent shapes.