National Math Standards Journey North's Mystery Class project helps bring many of the NCTM National Math Standards to life. Browse this chart by content area and then link directly to information and activities that reflect your teaching goals. As you review the activities, consider how you can adapt them to your unique context and students' abilities. A. Numbers & Operations B. Algebra C. Geometry D. Measurement E. Data Analysis & Probability F. Problem Solving G. Reasoning & Proof H. Communication I. Connections J. Representation National Math Standard Journey North Mystery Class Activity or Lesson A. NUMBERS & OPERATIONS Understand numbers, ways of representing numbers, relationships among numbers, and number systems. Kids Calculating Photoperiods Entire Mystery Class Challenge Compute fluently and make reasonable estimates. Kids Calculating Photoperiods Entire Mystery Class Challenge B. ALGEBRA Use mathematical models to represent and understand quantitative relationships. Entire Mystery Class Challenge Analyze change in various contexts. Exploring Shadows and Sunlight Follow the Sun Entire Mystery Class Challenge C. GEOMETRY Specify locations and describe spatial relationships using coordinate geometry and other representational systems.  Entire Mystery Class Challenge D. MEASUREMENT Understand measurable attributes of objects and the units, systems, and processes of measurement. Exploring Shadows and Sunlight World Clocks Entire Mystery Class Challenge Apply appropriate techniques, tools, and formulas to determine measurements. Exploring Shadows and Sunlight Entire Mystery Class Challenge E. DATA ANALYSIS & PROBABILITY Select and use appropriate statistical methods to analyze data. Entire Mystery Class Challenge F. PROBLEM SOLVING Build new mathematical knowledge through problem solving. Kids Calculating Photoperiods Entire Mystery Class Challenge Apply and adapt a variety of appropriate strategies to solve problems. Entire Mystery Class Challenge H. COMMUNICATION  Communicate their mathematical thinking coherently and clearly to peers, teachers, and others. .Entire Mystery Class Challenge I. CONNECTIONS  Recognize and apply mathematics in contexts outside of mathematics. Kids Calculating Photoperiods J. REPRESENTATION  Use representations to model and interpret physical, social, and mathematical phenomena. Follow the SunX.   Copyright 2004 Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to our feedback form