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In this eBook Timmy tackles the Common Core math standards of 2nd grade by working his way through 54 problems (2 per standard). These are great problems to be used as a warm up or discussed as a class. Follow Timmy's adventures at he has fun in Killington, VT!
to see state-specific standards (only available in the US).
Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.
Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
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.
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.