Elementary Mathematics

2nd Grade Unit 2 Overview and Standards

Use these links to access resources for this unit.

 Before You Begin this Unit…  
Unit at a Glance

In first grade, students distinguished between defining attributes (triangles are closed and 3-sided) versus non-defining attributes (color, orientation, overall size). They also built and drew shapes to possess defining attributes.

In first grade, students also composed 2-D shapes (rectangles, triangles, squares, trapezoids, half-circles and quarter-circles) or 3-D shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and composed new shapes from the composite shape.

In this unit, students will identify and sort 2-D shapes (triangles, quadrilaterals, pentagons, hexagons and cubes) by their number of sides and angles. Later in the unit, they will partition (separate) rectangles into rows and columns of same-size squares and count to find the total number of them.

Suggested Dates:
October 3- October 14

Estimated Duration:
8 Days

Access the following lessons for the Geometry Unit.  *Please note, this unit may take a minute or two to download* 
 Standards Addressed in the Unit

2.G.1 Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.

2.G.2 Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.

2.OA.2 Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.

2.MD.7 Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.

Link to CCSS Unpacking Document