← All Standards

Grade 2

• Strand 1

  • 2.1.A
  • 2.1.B
  • 2.1.C
  • 2.1.D
  • 2.1.E
  • 2.1.F
  • 2.1.G

• Strand 2

  • 2.2.A
  • 2.2.B
  • 2.2.C
  • 2.2.D
  • 2.2.E
  • 2.2.F

• Strand 3

  • 2.3.A
  • 2.3.B
  • 2.3.C
  • 2.3.D

• Strand 4

  • 2.4.A
  • 2.4.B
  • 2.4.C
  • 2.4.D

• Strand 5

  • 2.5.A
  • 2.5.B

• Strand 6

  • 2.6.A
  • 2.6.B

• Strand 7

  • 2.7.A
  • 2.7.B
  • 2.7.C

• Strand 8

  • 2.8.A
  • 2.8.B
  • 2.8.C
  • 2.8.D
  • 2.8.E

• Strand 9

  • 2.9.A
  • 2.9.B
  • 2.9.C
  • 2.9.D
  • 2.9.E
  • 2.9.F
  • 2.9.G

• Strand 10

  • 2.10.A
  • 2.10.B
  • 2.10.C
  • 2.10.D

• Strand 11

  • 2.11.A
  • 2.11.B
  • 2.11.C
  • 2.11.D
  • 2.11.E
  • 2.11.F

TEKS Math Standard: 2.1.F

analyze mathematical relationships to connect and communicate mathematical ideas

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

Letters With Symmetry

Let’s group letters by their symmetry, then create symmetrical words, and then symmetrical sentences!

Gr 4

Crossing Every Bridge Exactly Once (aka Eulerian Paths)

How can you cross each bridge in this city exactly once?

Gr 2-4

Geometry Image: Skytree

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

Gr 3-5

Geometry Image: Steigerwald

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

Gr 3-5

Find The Pattern: Multiply Fractions

What if you set the stage for students to discover how to multiply fractions?

Gr 5

Olympics: Winter vs Summer Medal Count

Which country has a great balance between their summer and winter Olympic medals?

Gr 3-8

How Many Will There Be? Triangles Within Triangles

A triangle splits and splits and splits again. How many will there be in step 20?

Gr 4-7

Math Curiosity: Klauber’s Triangle

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

Gr 2-8

Math Curiosity: A Pattern Packed Triangle

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

Gr 4-5

What’s In My Brain: Trapezoids or Not?

Which are trapezoids and which are not?

Gr 2-8

Same Perimeter, Different Area For Rectangles

Can two rectangles have the same perimeter but… different areas!?

Gr 3-4

Intersecting Angles and Streets

There can never be just one angle.

Gr 4

Exponents – How Low Can They Go?

Using exponent patterns, can students predict what the 0th power will be?

Gr 3-8

The Angles of a Triangle

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

Gr 4

Grouping Quadrilaterals In A Hierarchy

Can we classify quadrilaterals like we classify living things?

Gr 1-5

Analyzing Movies’ Success

So should we make another movie in this series?

Gr 5-7

Math Curiosity: Odds & Squares

Why does the sum of the first 5 odds also equal 5 squared?

Gr 1-4

A Caffeine Investigation – Part 3

Caffeine is everywhere. But what are the ads really saying? Analyze the claims, then create your own public service announcement.

Gr 2-8

Math Curiosity: Primes and Squares

Can any perfect square be written as the sum of two primes?

Gr 2-4

Math Curiosity: Legendre’s Conjecture

It seems like there’s always a prime number between two perfect squares… but is this always the case!?

Gr 3-6

Math Curiosity: Twin Primes

What do you call two prime numbers who are very close together?

Gr 3-5

Exploring Circumference With Famous Circles

Let’s find how the diameter and circumference of famous circles are related.

Gr 7

A Nutrition-Based Math Project

Let’s create a parody ad attacking a surprisingly calorie-rich meal.

Gr 5-7

Math Curiosity: Collatz Conjecture

The Collatz Conjecture: start with any number and get to 1 using just two rules. It seems to always work…

Gr 1-5