Curriculum – Geometry and Spatial Sense
- Sorting and classifying 2-dimensional shapes by attributes
- Classifying 2-dimensional shapes by geometric properties
- Relating shapes to other shapes, to designs, and to figures
- Describing relative locations and paths of motion
- Composing and decomposing shapes
- Recognizing transformations
Students are presented with the Shape Transformer (a poster display board with cutout “input” and “output” slots — see photo). The Machine works accordingly to a given transformation (e.g. rotates shapes 45 degrees clockwise). After a series of paired “input” and “output” cards, students guess the transformation rule.
- Shape transformer (poster board with two slots)
- Paired input/output cards (Download Sample Cards here)
- Present students with the Shape Transformer and explain that the machine operates
based on a specific transformation (e.g. reflects all input cards around vertical axis).
- Have students play the role of “detectives” and ask for their help in trying to figure out
the machine’s rule.
- Present students with an “input” card and insert it into the machine; take the
corresponding “output” card and withdraw it through the “output slot”.
- Place the pair of cards next to each other under two columns called “Input” and “Output”.
- Repeat the instructions above. Present at least 3 pairs before having students guess the
- Have the students guess the transformation rule by either verbal description and/or
drawing what the “output” might look like based on the “input” card.