Digipuzzle is an excellent site to find free educational games and puzzles for grades K- 5. Also, educators can find a wide variety of online activities dealing w/ different holidays. For example, their KDG section has a nice selection from counting games, shapes, colors, and more....
AR Flashcards Shapes & Colors is the brand-new educational augmented reality iOS app from Mitchlehan Media (i.e AR Flashcards Space). Like AR Space, all a child has to do is point the iOS device at the printed flashcard to display a 3D rendered animal holding up a shape. A user can then take a snapshot or even hear the shape by pressing on the sound button. This is a great way to introduce shapes & colors to toddlers and preschoolers as well as an innovative way to integrate technology & augmented reality into the classroom.
Sight Words Space is a (free today) iPad app designed for KDG/1st graders learning how to read and working on Science vocabulary words. The app is an interactive workbook that has students tracing words, listening to words, and playing fun interactive activities to help reinforce reading and word recognition. Also, students will be learning about Space, counting stars, and more.
Ready-K is a wonderful iOS app for assessing kindergarden aged students for parents and teachers. This is a great game/test that adults can use to evaluate how ready their student/child is ready for KDG through a range of educational/activities and games. The concepts covered are: shapes, colors, sizes, and more (1 of 8 fundamental concepts). Best of all, the results can then be emailed to a parent/teacher and a detailed progress report is given on each child.
Words w/ William is an excellent iOS app for PreK/Toddlers learning the alphabet, numbers, and colors. The way this works is a child watches William and selects the letter, number, or color he asks for. It's very easy to use and has a feature for parents to turn on/off what they want their child to learn.
Story Blocks is a great site for Pre-K and KDG students which help prepare students to learn how to read. This is a very engaging site and has lots of videos that students can sing/read a long to.