Geometry

A Guide to Effective Instructions: Geometry and Spatial Sense, Kindergarten to Grade 3
http://eworkshop.on.ca/edu/resources/guides/Guide_Math_K_3_GSS.pdf

A Guide to Effective Instruction: Geometry and Spatial Sense, Grades 4 to 6
http://eworkshop.on.ca/edu/resources/guides/Guide_Geometry_Spatial_Sense_456.pdf

Five Ways to Make Geometry Memorable
https://beta.scholastic.com/teachers/blog-posts/genia-connell/five-ways-make-geometry-memorable/

Mrs. Meacham's Math Tub Resources for Shapes
Google Drive Files

Tangrams
Tangram ClipArt
http://etc.usf.edu/clipart/galleries/780-tangrams

The House That Jack Built (Scroll down to jack_tangrams.pdf)
http://www.uen.org/Lessonplan/preview.cgi?LPid=5754