The LifePrints 1 Teacher's Resource File can be used with the LifePrints 1 Student Book, or it can be adapted for use with any ESL curriculum, whether or not the Student Book is being used. When used with the Student Book, the Teacher's Resource File activities provide both reinforcement and expansion of the language and culture skills presented in the Student Book units. In some cases, they utilize the vocabulary and structures of the lessons but practice them in new contexts, enabling learners to transfer their new skills to a wider range of life situations. In other instances, they present new but related vocabulary and structures to familiar contexts, expanding the learners' linguistic development. An important feature of the Teacher's Resource File is the flexibility with which these activities can be brought into the learning situation. The Teacher's Resource File activities can be used directly with the Student Book lessons with which they correlate, but it is equally possible to use handouts from any unit whenever they fit the needs of the learning experience, to reinforce or expand language skills as well as to vary the pace of a lesson. Alternatively, the Teacher's Resource File can be adapted for use with any ESL curriculum, whether or not the Student Book is being used. For each Teacher's Resource File activity master, there is an accompanying page addressed to the teacher or tutor, providing suggestions for effective use of the activity. Each teacher page provides the primary purpose of the activity, the recommended materials, any steps needed to prepare the handout for classroom use (e.g., cutting copies of the handout into sections or frames), and a suggested time range, to facilitate lesson planning. Directions to the teacher suggest warm-up steps that tap into learners' prior knowledge and experience as well as introduce vocabulary, structures, and concepts that will be needed to carry out the activity.