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 …

## 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 …

## Horseshoes (+/-)

Topics: Addition, subtraction, estimation, comparisons. Materials: Card deck, pencil and paper, white board/document camera. Grades: 2, 3, 4 Common Core: 2.NBT.B.5, 3.NBT.A.2 How close can you get to the target number with the digits provided? Why We Love Horseshoes Horseshoes combines arithmetic practice with complex thinking. Students make their own choices about how to combine the four numbers and get immediate feedback …

## 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 …

## Double Digit and Dollar Digit

Topics: Addition, Estimation Materials: A die, pencil and paper, base ten blocks (optional) Recommended Grade: 2, 3 Common Core: 2.NBT.B.5, 2.NBT.B.6 Each time the die is rolled, you can take that number of ones or tens. How close can you get to 100 without going over? Why We Love Double Digit This simplified version of Don’t Break the Bank is …

## 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 …

## Broken Calculators

Topics: Addition, Subtraction, Skip Counting, Multiplication, Logic Materials: Scratch paper and pencil, handouts (optional) Recommended Grade: 3, 4 Common Core: 3.OA.A.3, 3.OA.A.4, 3.OA.B.5, 3.OA.D.8, 3.OA.D.9, 4.OA.A.4, 4.OA.C.5, MP1, MP2, MP3, MP6, MP7, MP8 Something is wrong with the calculators in each lesson. Can students reach the target number despite the broken buttons? Why We Love Broken Calculators The premise is simple, but …

## Counterexamples

Topics: logic, deduction, mathematical argument, communication Materials: None Recommended Grades: K, 1, 2, 3, 4, 5, 6, 7, 8 Common Core: Variable, but especially MP3 Proving the teacher wrong. Rigorously. Why We Love Counterexamples Every kid loves to prove the teacher wrong. With Counterexamples, they get to do this in a productive way, and learn appropriate mathematical skepticism and communication …

## Blockout

Topics: Multiplication, area, strategy, addition. Materials: Crayons, Blockout game sheet Recommended Grades: 3, 4 Common Core: 3.OA.A.1, 3.OA.C.7, 3.MD.C.6, 3.MD.C.7 Roll the dice and shade in a rectangle. How can you claim the most space on the board? For 2-4 players. Why We Love Blockout This is one of those rare games that reinforces both the skill of multiplication and the …

## 1-2-3 Nim on a 10-Frame

Topics: logic, patterns, addition to 10, counting to 10, subtraction Materials: One 10-frame and at least ten counters per pair of students Recommended Grades: K, 1 Common Core: K.CC.A.2, K.CC.B.4, K.CC.B.5, K.OA.A.1, K.OA.A.2, K.OA.A.4, K.OA.A.5, 1.OA.B.4, MP1, MP7 How to Play Players take turns placing one, two, or three counters on the open squares of a 10-frame. Whoever fills up …