# Texas - Grade 1 - STAAR Math - Geometry and Measurement - 2-D Shapes - 1.6.D

### Description

Identify two-dimensional shapes, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons and describe their attributes using formal geometric language.

• State - Texas
• Standard ID - 1.6.D
• Subjects - MathTX 2014

### Keywords

• STAAR Math
• Geometry and Measurement

## More Texas Topics

1.5(E) Understand that the equal sign represents a relationship where expressions on each side of the equal sign represent the same values (F) Determine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the three or four terms in the equation

Identify three-dimensional solids, including spheres, cones, cylinders, rectangular prisms .including cubes, and triangular prisms, and describe their attributes using formal geometric language.

Use concrete and pictorial models to compose and decompose numbers up to 120 in more than one way as so many hundreds, so many tens, and so many ones.

Distinguish between attributes that define a two-dimensional or three-dimensional figure and attributes that do not define the shape.

1.6(F) Compose two-dimensional shapes by joining two, three, or four figures to produce a target shape in more than one way if possible (C) Create two-dimensional figures, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons