Using this K.MD.3 Kindergarten Common Core Lesson, students sort objects into categories in order to find similarities between objects.

Using this K.OA.1 Kindergarten Common Core Lesson, students add together two groups of objects and then match to the sum card.

This K.OA.2 Kindergarten Common Core Lesson includes K.OA.2 Worksheets, K.OA.2 Activities, K.OA.2 Assessment, and K.OA.2 Poster.

Using this K.OA.3 Kindergarten Common Core Lesson, students match equations to ten frames to build an understanding of number sense.

Using this K.OA.5 Kindergarten Common Core Lesson, students match subtraction equations to its answers to build fact fluency.

This 1.MD.1 First Grade Common Core Lesson gives students practice with measuring objects with cubes and ordering objects based on their lengths.

This 1.MD.3 First Grade Common Core Lesson teaches students about how to read a clock to the hour and half hour through this matching activity.

In this 1.NBT.2 First Grade Common Core Lesson, students will practice finding groups of 10 to build their understanding of place value.

In this 1.NBT.4 First Grade Common Core Lesson, students will practice adding 10 to a given number.

In this 1.NBT.5 First Grade Common Core Lesson, students practice finding 10 more and less than a given number.

In this 1.OA.7 First Grade Common Core Lesson, students will decide given equations are true or false to understand the meaning of the equal sign.

This 2.MD.9 Second Grade Common Core Lesson includes 2.MD.9 Worksheets, 2.MD.9 Activities, 2.MD.9 Assessment, and 2.MD.9 Poster.

In this 2.NBT.3 Second Grade Common Core Lesson, students will read and write numbers to 1000 using base-ten numerals, number names, and expanded form.

In this 2.NBT.5 Second Grade Common Core lesson, students fluently add and subtract within 100 using multiple strategies.

In this 3.MD.1 Third Grade Common Core Lesson, students tell and write time to the nearest minute to solve word problems involving time intervals on a number line.

In this 3.MD.3 Third Grade Common Core Lesson, studentsdraw a scaled picture graph and a scaled bar graph to represent a data set with several categories.

In this 3.MD.7 Third Grade Common Core Lesson, studentsfind the area of a vegetable garden by relating addition and multiplication.

In this 3.NBT.2 Third Grade Common Core Lesson, studentsfluently add and subtract within 1000 using multiple learned strategies.

In this 3.NF.3 Third Grade Common Core Lesson, students explain equivalence and compare fractions by reasoning about their size.

In this 3.OA.4 Third Grade Common Core Lesson, students determine the unknown whole number in a multiplication or division equation.