Teachers from two countries designed a model-eliciting activity about the global issue of wind energy. They share teaching and student outcomes from a cross-border engagement in the task with students from Indonesia and the United States through synchronous video conference.
Rachel Wiemken, Russasmita Sri Padmi, and Gabriel Matney
Amanda L. Cullen, Carrie A. Lawton, Crystal S. Patterson, and Craig J. Cullen
In this lesson, third graders were asked how many degrees is a full rotation around a circle. After we gave students time and space to disagree, to make and test conjectures, and to explore, they reasoned about angle as turn and determined a full rotation is 360 degrees.