## Why parents choose Splash Math for their first graders?

#### Personalised Learning

Intelligently adapts to the way each child learns

#### Fun Rewards

Get coins for each correct answer and redeem coins for virtual pets

#### Actionable Reports

Monitor progress with iPhone app, weekly emails and detailed dashboards

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# Two Dimensional Shapes : Quadrilaterals and Triangles

- 1st Grade MathIn kindergarten, students learn to visually identify circles, triangles, squares and rectangles. In the first grade they learn about defining attributes of these shapes and to distinguish these from non-defining attributes (shape, orientation, color etc.). With **Two Dimensional Shapes Worksheet** kids practice identifying the defining attributes of triangles, rectangles, squares and trapezoids. For example, all these shapes are closed shapes and this is a defining attribute. They also identify shapes based on number of sides, number of equal sides etc.

### Common Core Alignment

**1.G.1**Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.