This 2.NBT.6 Second Grade Common Core Lesson includes 2.NBT.6 Worksheets, 2.NBT.6 Activities, 2.NBT.6 Assessment, and 2.NBT.6 Poster

In this 2.NBT.8 Second Grade Common Core Lesson, students mentally add and subtract 10 or 100 from a given number 100–900.

In this 2.OA.3 Second Grade Common Core Lesson, students determine whether a group of objects (up to 20) has an odd or even number of members.

In this 3.MD.4 Third Grade Common Core Lesson, students generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch.

In this 3.MD.8 Third Grade Common Core Lesson, studentsfind the perimeter of polygons using knowledge of shapes to solve for missing lengths.

In this 3.NF.1 Third Grade Common Core Lesson, students understand a fraction as the quantity formed by 1 part when a whole is partitioned into equal parts.

In this 3.NF.2 Third Grade Common Core Lesson, students represent fractions on a given number line using various tick marks.

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

In this 3.OA.5 Third Grade Common Core Lesson, students apply properties of operations as strategies to multiply and divide.

In this 3.OA.6 Third Grade Common Core Lesson, students understand division as a way to find the unknown number in a multiplication problem.

In this 3.OA.7 Third Grade Common Core lesson students determine the unknown whole number in a multiplication or division equation.

In this 3.OA.8 Third Grade Common Core Lesson, students solve two-step word problems using the four operations and checking for reasonableness of answer.

In this 4.G.3 Fourth Grade Common Core Lesson, students recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts.

In this 4.MD.5 Fourth Grade Common Core Lesson, students recognize angles as obtuse, acute or right by playing War!

In this 4.NBT.3 Fourth Grade Common Core Lesson, students round numbers to the given digit.

In this 4.NF.5 Fourth Grade Common Core Lesson, students express a fraction with denominator 10 as an equivalent fraction with denominator 100, and thenadd two fractions.

In this 4.OA.3 Fourth Grade Common Core Lesson, students solve multi-step word problems posed with whole numbers using the four operations.

Using this 4.OA.4 Fourth Grade Common Core lesson students determine whether a given whole number in the range 1–100 is prime or composite.

In this 5.G.2 Fifth Grade Common Core Lesson, students represent real world and mathematical problems by graphing points in the first quadrant of the coordinate plane.

In this 5.G.3 Fifth Grade Common Core Lesson, students understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.