Houghton Mifflin Harcourt Apps

2009 Nappa Gold Winner
National Parenting Publications Awards

The world’s most curious monkey investigates new words in this fully interactive picture dictionary for young children....

Join the Five Little Monkeys in this interactive book app as they jump on the bed after they say good night to Mama! Explore pictures, learn new vocabulary, and personalize the story with your own...

Dive into this interactive book app and meet Tacky the Penguin- an odd bird who marches to the beat of his own drummer! Explore pictures, learn new vocabulary, and personalize the story with your...

Join Tacky the Penguin in this interactive book app as he prepares for the arrival of the emperor by wearing wacky attire! Explore pictures, learn new vocabulary, and personalize the story with...

Write your own pocket-sized adventures with Martha!
Make your own stories with Martha and her friends! Then, play with the characters in your storybook while Martha reads. Or, play in the...

Join Chester Racoon in this interactive book app as his mother shares a family secret called The Kissing Hand to help ease his fears about going to school. Explore pictures, learn new vocabulary,...

Join the Five Little Monkeys in this interactive book app as they play hide-and-seek with their babysitter Lulu! Explore pictures, learn new vocabulary, and personalize the story with your own...

✮✮ Picked as App Store New & Noteworthy! ✮✮ Reached #2 paid Education iPad app in U.S. App Store, #1 elsewhere ✮✮
✮ On sale at $1.99 for iPad launch ✮
✮ 2009 Nappa Gold Winner, National...

Gather the family for the ultimate party game – with a distinctly Martha twist! Up to four players can join in the fun, with six interactive mini-games that both kids and parents can enjoy...

The Simple Harmonic Motion lab uses a spring-mass system to investigate relationships between the spring constant, mass, amplitude of oscillation, and period of oscillation for a mass on a spring. ...