← 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: 2.7.A

determine whether a number up to 40 is even or odd using pairings of objects to represent the number

Fizz Buzz: A Counting and Divisibility Game

Ready for a tricky counting and divisibility game?

Gr 3-6

How Many Will There Be? Pyramids

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

Gr 4-7

Math Curiosity: Ulam Spiral

What if we make a huge spiral of numbers and then highlight only the primes? Well, a bunch of weird patterns show up!

Gr 1-4

Math Curiosity: Goldbach’s Conjecture

Can any even number be written as the sum of two primes? Goldbach thought so, but we haven’t proven it… yet!

Gr 1-5

Evens and Odds – Addition and Subtraction

When we’re adding and subtracting, do evens make odds into evens? Do odds make evens odd? Which one has… more power!?

Gr 3-4

How Many Ways: 2 Digit ÷ 1 Digit = 1 Digit

How many different ways can you make this math statement true using only the digits one through nine?

Gr 3-4

Math Curiosity: Odds & Squares

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

Gr 1-4

Math Curiosity: Waring’s Conjecture

So, can you write every odd (greater than 3) as the sum of three primes?

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: 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