Chalk Walk (iPad, $2.99)
This app teaches pre-school kids the pincer grip for holding a pencil. It was developed by Francis Judd, who has taught at Chicago's Francis Parker School for 25 years. Download at appolicious.com/education/apps/1133500-chalk-walk-kboom-games-llc
Number Line (iPhone, free)
This math game requires students to put fractions, decimals and percentages in order. It is great for students who are new to these concepts, although it is developed for grades 2nd ? 8th.
The Elements: A visual exploration (iPad, $6.99)
This app allows students to learn about the periodic table in a hands-on way. For example, choose the element copper. Various copper objects will appear, including a Persian weave chain and a brass ring. Then rotate them with your finger for a 3D view.
Khan Academy (iPad, free)
Former hedge fund manager Salmon Khan has a popular and free educational site, khanacademy.org, that showcases hundreds of YouTube videos for math, science, humanities and test prep. The iPad app lets you pinpoint passages in videos most relevant to you. Download at appolicious.com/education/apps/1093183-khan-academy-khan-academy
For educators:iStudiez Pro (iPhone, iPad 99 cents)
This task management app also tracks extracurricular activities. Download at appolicious.com/finance/apps/10369-istudiez-pro-enfiero-incorporated
NotifyMe (iPad, free)
This general use reminder app is also popular with students. Download at appolicious.com/finance/apps/10369-istudiez-pro-enfiero-incorporated
For more information, visit appolicious.com.