WEB DESK: In the world with such advanced technology, it is not uncommon for children to be accustomed to a tablet or a smart phone. It is rather one of the most easy ways to keep your child busy. 

While it is common practice to listen to nursery rhymes on YouTube, who not opt for something a bit more productive and download applications that might educate your child?

Here are seven of the most useful apps for your child.

1. ELMO Loves 123

Help your child identify and count numbers from 1 to 20, do simple addition and subtraction, and trace numbers that also open surprises, such as Sesame Street videos, puzzles, and coloring pages. Along the way, everyone's favorite furry character, Elmo, and Abby Cadabby guide kids through learning math.

2. Disney Story Central

Bedtime just got a lot less painful, thanks to Disney Story Central. The large selection of e-books staring Disney characters such as Mickey Mouse, the princesses, and Doc McStuffins -- offer read-along narration and personalized book recommendations.

3. The Magic School Bus

Ms. Frizzle and her students embark on an aquatic journey in this interactive storybook, which features science facts, pictures, games, and videos.

4. Fish School HD

Colorful fish teach your preschooler his letters, numbers, shapes, and colors in an under-the-sea world.

5. Winky Think Logic Puzzles

Your kid will keep busy for hours with this app, which has over 180 logic puzzles ranging from simple matching to complex games with obstacles, mazes, and multi-touch action.

6. The Sight Word Adventure

Help your child learn to recognize, read, and write up to 320 sight words. By tapping into every kid's love of hide-and-seek, your child will practice the cognitive skills necessary to remember sight words -- like visual attention, active listening, and visual memorization.

7. Green Eggs and Ham by Dr. Seuss

This ebook highlights words as the narrator reads, and your young reader will love interacting with objects featured on each page -- touching them brings up their associated words.