On and Off
This book is available for download with iBooks on your Mac or iOS device, and with iTunes on your computer. Books can be read with iBooks on your Mac or iOS device.
Language Lesson Books are designed to guide you through certain developmental milestones. Each book contains a target language outcome and a short list of vocabulary words you can use with a child using an augmentative communication device or learning beginning language. More information can be found at www.aaclanguagelab.com