Timely ideas and information, with daily updates. Frequently Asked Questions Thousands of web sites for educators and students. Support for long-term classroom planning and professional development. Information covering important topics for today's educators and parents. This book provides ideas for developing mental computation skills using a thinking approach to computation.
Students state an answer and explain their computation strategy.
The goal is for students to develop understanding and logical thinking skills as they model, visualize, and discuss their ideas. After writing a computation problem, such as 2768 minus 1986, on the chalkboard, students tell the teacher everything they can say about the problem except the answer. Possible student responses include the answer is less than 1000 or the answer is an even number. A transcript of a classroom discussion and other computation examples are presented in this book. Suggested assessment activities, such as observations, interviews, and journal writing, focus on students' number sense and computation problem-solving skills.