What is the importance of whitebark pine? Objective Students will understand the role of the whitebark pine in the alpine and subalpine communities. Preparation “Who am I?” cards. Please email us for a digital copy of these cards. (1 of each for class 25) – please note that the copies should be 2-sided and laminated for durability Fold each card and attach a ‘neck loop” of yarn to the fold area (about 3 feet long) Large ball of yarn (softball sized or larger) or string Roll of toilet paper Procedure 1. The “Who am I?” cards should be made so that the student can read the description of the sub Duration: 60 Minutes Additional Standards: NGSS MS-LS2-2. Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems. MS-LS2-4. Construct an argument supported by empirical evidence that changes to components of an ecosystem affect populations. Essential Questio.