Curated OER
Halves, Thirds, and Sixths
An excellent activity that effectively pulls together the concepts of area, fractions, and equivalent fractions! Using 3x2 rectangular arrays, 3rd graders are introduced to the concept of area in terms of square units. Building on this...
College Board
2012 AP® Computer Science A Free-Response Questions
There's really no better way to become acquainted with the AP test format than to look at past exams. A set of four free-response questions assesses knowledge of computer science skills. They cover a variety of topics including how to...
Curated OER
Shapes and Their Insides
Learners follow a series of instructions for drawing and coloring different shapes in order to learn the difference between the perimeter and area of a polygon. Then they are asked to find the perimeter and area of a 3x4 rectangular...
California Education Partners
Lashelles Garden
Let knowledge grow bountifully like plants in a garden. Given a diagram of a rectangular garden split into plots, scholars determine the area of the entire garden and the areas of the individual plots. As a culminating activity, they...
Other
2nd Grade Worksheets: Common Core State Standard 2.oa.4
A collection of four worksheet sets that address the Common Core State Standard 2.OA.4.