← All Standards

Grade 3

• Geometry

  • 3.G.A.1
  • 3.G.A.2

• Measurement & Data

  • 3.MD.A.1.a
  • 3.MD.A.1.b
  • 3.MD.A.2
  • 3.MD.B.3
  • 3.MD.B.4
  • 3.MD.C.5
  • 3.MD.C.5.a
  • 3.MD.C.5.b
  • 3.MD.C.6
  • 3.MD.C.7
  • 3.MD.C.7.a
  • 3.MD.C.7.b
  • 3.MD.C.7.c
  • 3.MD.C.7.d
  • 3.MD.C.8

• Number & Operations: Base Ten

  • 3.NBT.A.1
  • 3.NBT.A.2
  • 3.NBT.A.3

• Number & Operations: Fractions

  • 3.NF.A.1
  • 3.NF.A.2
  • 3.NF.A.2.a
  • 3.NF.A.2.b
  • 3.NF.A.2.c
  • 3.NF.A.3
  • 3.NF.A.3.a
  • 3.NF.A.3.b
  • 3.NF.A.3.c
  • 3.NF.A.3.d

• Operations & Algebraic Thinking

  • 3.OA.A.1
  • 3.OA.A.2
  • 3.OA.A.3
  • 3.OA.A.4
  • 3.OA.B.5
  • 3.OA.B.6
  • 3.OA.C.7
  • 3.OA.D.8
  • 3.OA.D.9
  • 3.OA.D.10

Arizona Math Standard: 3.G.A.1

Understand that shapes in different categories (e.g., rhombuses, rectangles, and others)may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples quadrilaterals that do not belong to any of these subcategories.

What’s In My Brain: H vs Arrow

Two columns. One is an example, one isn’t. Can you figure out the hidden rule before the big reveal?

Gr 1, 2, 3, 4, 5, 8

What’s In My Brain: Pentagon vs Pentagon

We’re looking at regular vs irregular polygons.

Gr 1-8

Grouping Shapes by Parallel and Perpendicular Sides

Which shapes go together based on parallel and perpendicular lines?

Gr 1, 2, 3, 4, 5, 8

Geometry Image: Esplanade Theaters

What odd and interesting shapes can your students find in this geometric image?

Gr 1, 2, 3, 4, 5, 8

Geometry Image: University Ave

What odd and interesting shapes can your students find in this geometric image?

Gr 1-5

Geometry Image: Victoria Conference Center

What odd and interesting shapes can your students find in this geometric image?

Gr 1-5

Geometry Image: Skytree

What odd and interesting shapes can your students find in this geometric image?

Gr 1, 2, 3, 4, 5, 7, 8

Geometry Image: Steigerwald

What odd and interesting shapes can your students find in this geometric image?

Gr 1, 2, 3, 4, 5, 7

How Many Will There Be? Squares in Squares

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 2-5

Math Curiosity: Klauber’s Triangle

In 1932, a leading authority on rattlesnakes, Laurence Klauber, discovered a startling pattern within a triangle of primes.

Gr 1-5

Math Curiosity: A Pattern Packed Triangle

Pascal’s pattern-packed triangle is a potent puzzle for pupils to ponder.

Gr 3-5

What’s In My Brain: Trapezoids or Not?

Which are trapezoids and which are not?

Gr 1-8

The Angles of a Triangle

Why tell a kid the rules of a triangle when they can discover them!?

Gr 1, 2, 3, 4, 5, 7, 8

Grouping Quadrilaterals In A Hierarchy

Can we classify quadrilaterals like we classify living things?

Gr 1-5

Lines, Line Segments, Rays, and Infinity!

A lesson about lines, line segments, and rays that avoids dull memorization. Instead, we ponder this delightful question: Which is longer, a ray or a line? Then, kids consider what these different geometric concepts would think about each other.

Gr 1, 4

Deducing the Area of Triangles

Using patterns, students try to deduce where that area formula came from.

Gr 1, 2, 3, 4, 6, 7