1st Grade Common Core Geometry Worksheets: Partitioning Rectangles and Circles 1.G.3
The attachment is a packet of five days of worksheets for first grade common core standard 1.G.3 Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares. Each day has two worksheets, designed to be copied front and back. The front page focuses on the standard of the week and the back is a review of previous information. They all contain place value review and word problems, including an area to write an equation.
The review concepts this week are:
1.NBT.5 Given a two-digit number, mentally find 10 more or 10 less.
1.OA.1 Solve word problems within 20
1.0A.7 Understand the meaning of an equal sign and determine if equations involving addition and subtraction are true or false.