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# Shape Overlays

Students manipulate 2D shapes, by sliding and overlapping, to create other 2D shapes.

### Teacher notes

• Tasks such as making a specified shape to complete a picture puzzle require the student to consider the properties of the two original shapes and visualise how the two shapes may be overlapped to create the properties needed for the new shape.
• The level of difficulty is increased by using more complex shapes, increasing the number of shapes to choose from and using the option to rotate shapes.

### Learning objects

 Shape overlays: picture puzzleStudents create a picture from a range of shapes made by the intersecting shapes of overlayed shapes. Students select from four regular shapes then slide the shapes over each other to create another intersecting shape. Students cut, rotate and arrange the shape to create their own picture.Additional fun elements are available to add to pictures if required. A number of starter ideas are provided.Students can print their picture. Shape overlays: find and cutThe student is presented with a missing shape in a partially covered picture. To find the missing shape and see the final picture, the student slides a given 2D shape over a fixed 2D shape. They cut the shape to check that they are correct. When they have matched the missing piece the picture is revealed. Shape overlays: find, cut and turnThe student is presented with a missing shape in a partially covered picture. To find the missing shape and see the final picture, the student selects from two given 2D shapes (including obtuse triangle, pentagon, trapezium), and slides it over a given fixed 2D shape. They cut and rotate the shape to match the missing piece and its orientation to see the picture revealed. Reproduced with permission of Jupiter Corporation Shape overlays: picture puzzleThe student is presented with a missing shape in a partially covered picture. To find the missing shape and see the final picture, the student select from three 2D shapes (including scalene triangle, rhombus and pentagon) and slides it over a fixed 2D shape. They cut and rotate the shape to match the missing piece and its orientation to see the picture revealed.