Greiffenhagen, C., & Sharrock, W. (2005). Gestures in the blackboard work of mathematics instruction.
Chicago Edition CitationGreiffenhagen, Christian, and Wes Sharrock. Gestures in the Blackboard Work of Mathematics Instruction. 2005.
MLA Edition CitationGreiffenhagen, Christian, and Wes Sharrock. Gestures in the Blackboard Work of Mathematics Instruction. 2005.
Warning: These citations may not always be 100% accurate.