Study Link 3.7

3.8 Regular Tessellations I can describe side and angle relationships in regular tessellations. I can compare quadrilaterals. I can classify quadrilaterals.

In a regular polygon all sides are the same length, and all angle measures are equal.

An arrangement of repeated, closed shapes that cover a surface so no shapes overlap, and there are no gaps between any shapes. A tessellation with shapes that are congruent, regular polygons is called a regular tessellation. Some tessellations repeat only one shape, others combine two or more shapes. What is a tessellation?

Exploring Regular Tessellations Use the cut-outs and/or the shapes on your geometry template to complete Journal pages 82-83. Exploring Regular Tessellations

Tessellation Creator http://illuminations.nctm.org/ActivityDetai l.aspx?ID=202

Classifying Quadrangles (from 3.7) True or False? All squares are parallelograms. _______ All rhombuses are rectangles._________ A kite is a rhombus.___________ All quadrangles are parallelograms._____ Trapezoids are not parallelograms.______ All rhombuses are parallelograms.______ Classifying Quadrangles (from 3.7)

Fill in the blanks with always, sometimes, or never. Squares are __________ rectangles. Rhombuses are ___________ rectangles. Trapezoids are ____________ rectangles. A kite is _____________ a parallelogram. Rectangles are ____________ squares. Fill in the blanks with always, sometimes, or never.

Create 3 statements similar to the ones we just did (but they can not be the same statements). One should be a sometimes statement. One should be a never statement. One should be an always statement. Exit Slip

SRB 296 MM 444 Angle Tangle

Math Boxes Journal page 84 Raise your hand to be checked. Once they are all correct you can get a partner and play “Angle Tangle”. Math Boxes

Study Link 3.8 MM 91