Math Kobold vs AstroNights

Learn quick mental arithmetic step by step with Math Kobold. Fun levels, good music and various rewards create a positive atmosphere for practice and motivate to play again. Join Math Kobold on his journey through the woods and hills and hold off nasty opponents by quickly solving math problems. Before you take off, you choose which kind of problems you want to solve: addition, subtraction, multiplication or division. Then select the number range (up to 10, 20, 50, 100 or 1000) and the Kobold is ready to go. On his journey the Math Kobold meets many creatures that all have one thing in common: He can only pass if he solves the math problem they present. You choose between two possible results by tapping the side of the screen where the correct result appears. And if you ever got one wrong: The Kobold is a tough guy and has more than one life! And at the end of each level a chest of gold is waiting for you and you can advance to the next level or choose a higher speed. So do you think you can make it to the last level with lightning speed? This app has the following motivating features for children in primary school age and beyond: - Supports all basic calculations including multiplication tables - Multiple unlockable difficulty levels provide challenges for all ages and skill levels - The adaptive math problem generator will select easier calculations if you cannot solve some in a row - Random and constant repetition of tasks improves mental arithmetics and times tables skills - The Math Kobold rewards fast selection of results with his legendary 'Yeah'-Move - The more 'Yeah!' moves, the more stars you get for that level - Different gameplay settings and cool music keeps everyone coming back even in times when math is not on top of your list What was important for us when developing the Math Kobold app? 1. Training mental arithmetics and basic math skill should be fun! 2. Create a game that kids would love to play, with math problem solving as the key element to progress in the game. 3. Incorporate the feedback from children (including our own) and parents! 4. Make it challenging enough so that kids really want to work on their math skills. We are happy about any feedback and ideas that you have. Get in touch! Have fun with the Math Kobold on your way to become the fastest mental arithmetics champ on earth (or at least in your neighborhood)!

AstroNights helps you plan a photographing or visual night at your site. See nautical dusk and dawn, moon illumination, and a seeing score for the coming nights. The weather chip follows tonight’s forecast, including rain. Pick a saved observing site or use Current GPS. Browse DSOs, planets, and comets with live altitude, framing versus your camera FOV, an AstroBin search link, and an altitude graph. Filter DSOs to objects above 10° in nautical night and large enough in your field of view. Star targets as favorites (thumbnail, catalog name, common name, size). Expand a row for Wikipedia notes and a NINA Advanced Sequencer JSON export. Weather defaults to 7Timer (cloud, seeing, transparency). You can switch to OpenWeatherMap or meteoblue with your own API key. Catalog data includes OpenNGC (CC BY-SA 4.0) and Gary Imm’s Deep Sky Compendium Top 200 (used with permission; https://www.garyimm.com/compendium). The full Compendium can be imported. Object photos come from your library, Flickr CC, Wikimedia Commons, ESO, ESA/Hubble, or DSS. AstroBin opens as a search link; photographers retain their rights.