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## 2, 4, 6 Puzzle

The 2-4-6 Puzzle teaches an invaluable lesson about inductive reasoning, confirmation bias, and how “wrong” answers lead to deeper knowledge. It can be adapted with different rules for endless play options and difficulties. Also see Josh Golden’s writeup of Eleusis Express for a card game version of the game, perfect to play with standard cards, SET cards, or Tiny Polka …

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## Cuisenaire Rods for K/1/2

Topics: Addition, subtraction, measurement, skip counting Materials: See specific lessons Recommended Grade: K, 1, 2 Common Core: K.CC.B.4, K.CC.B.5, K.OA.A.1, K.OA.A.2, K.OA.A.3, 1.OA.A.1, 1.OA.A.2, 1.OA.D.7 Overview This series of lessons is meant to introduce Cuisenaire rods in a creative, engaging way, and see how Cuisenaire rods can illuminate and motivate addition, subtraction, and measurement. Why We Love Cuisenaire Rods Cuisenaire rods are …

## Dots and Boxes

This classic game is great for strategy, mathematical thinking, and basic counting and addition.

## Sum – Memory

Topics: Addition Materials: Cards Recommended grades: K, 1, 2, 3 Common Core: K.OA.A.2, K.OA.A.4, K.OA.A.5, 1.OA.C.6, 2.OA.B.2 Sum-Memory is Memory with a twist: instead of trying to capture identical pairs, players are trying to find pairs that add up to 5, 10, or another target number. Why we love Sum-Memory Sum-Memory is all the fun of memory, but with the …

## Target Number

Math Concepts: Arithmetic, equivalencies Equipment: pencil & paper Grades: K, 1, 2, 3, 4, 5 Common Core: Variable, but especially OA, i.e., 1.OA.C.5, 2.OA.B.2, 3.OA.C.7 Time: 5 – 15 minutes You know the answer. What’s the question? Why We Love Target Number This is a quick check-in that adjusts to the abilities of each student, allows for creativity and arithmetic practice together, and …

## Pig

Topics: probability, strategy, addition, estimation Materials: One 6-sided die, pencil and paper Recommended grades: 1, 2, 3, 4, 5, 6 Common Core: For Pig and Big Pig:1.OA.A.1, 1.OA.A.2, 1.NBT.C.4, 2.OA.B.2, 2.NBT.B.5, 2.NBT.B.6, 3.NBT.A.2 For Odd Pig Out: 3.OA.A.3, 3.OA.B.5, 3.OA.C.7 , 4.NBT.B.4,, 4.NBT.B.5, 4.MD.B.4,, 5.NBT.B.5, 5.MD.B.2, 6.SP.A.1, 6.SP.A.2, 6.SP.A.2, 6.SP.B.5 Roll the dice and collect points. You can go as long as …

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## Number Talks

Topics: Mental math, numerical fluency; argument & critique Materials: White board or projector Time:5 – 15 minutes Common Core: Variable, but especially MP3 This mental math routine creates powerful positive habits for students. Why We Love Number Talks Number talks don’t replace other instruction, but they are a powerful complement to it. They get all students involved, help them strengthen fluency, intuition, …

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## Math Games and Movement Breaks

Enjoying these lessons? Join our mailing list now and we’ll send you lesson updates, our 8-page Games to Play at Home packet, all our New York Times puzzles, and much more.   Topics: addition, subtraction Materials: none Recommended grades: K, 1, 2, 3, 4 Common Core: K.OA.A.2, K.OA.A.4, K.OA.A.5, 1.OA.C.6, 2.OA.B.2 When kids get antsy, it is time to break out …

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## Cuisenaire Rod Lessons

Topics: Addition, subtraction, measurement, skip counting Materials: See specific lessons Recommended Grade: K, 1, 2 Common Core: K.CC.B.4, K.CC.B.5, K.OA.A.1, K.OA.A.2, K.OA.A.3, 1.OA.A.1, 1.OA.A.2, 1.OA.D.7 Overview This series of lessons is meant to introduce Cuisenaire rods in a creative, engaging way, and see how Cuisenaire rods can illuminate and motivate addition, subtraction, and measurement. Why We Love Cuisenaire Rods Cuisenaire rods are …

## Domino Sorting

Math concepts: Addition, Classification Equipment: Domino Set Recommended Grades: K, 1, 2, 3 Time: 15 – 45 minutes Common Core: K.OA.A.2, 1.OA.B.3, 1.OA.C.5, 1.OA.C.6, 2.OA.B.2, MP1, MP6, MP7 Overview What is the middle domino? This question launches the project of sorting the dominoes from least to greatest. Why We Love Domino Sorting Domino sorting is a perfect math challenge for a station or …