## 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 …

## 1-2 Nim

Topics: logic, patterns, addition, counting, subtraction, divisibility and remainders (optional) Materials: Counters (tiles, beans, pennies, etc.) or paper and pencil Recommended Grades: K, 1, 2, 3, 4 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.5, 1.OA.B.4, 1.OA.C.5, 2.OA.B.2, 3.OA.D.9, 3.OA.A.2, 3.OA.A.3, 4.OA.C.5, MP1, MP2, MP3, MP5, MP7, MP8 You can take one or two counters from the pile. How do …

## Counting Collections

Topics: Counting, skip counting, addition, multiplication (optional) Materials: Paper, pencil, objects of many types (button, beans, stones, pencils, markers, blocks, etc.) Target Grades: K, 1, 2, 3 Common Core: K.CC.A.1, K.CC.A.2, K.CC.A.3, K.CC.B.4, K.CC.B.5, K.MD.B.3, 1.NBT.A.1, 1.NBT.B.2, 1.NBT.B.2.a, 1.NBT.B.2.b, 1.NBT.B.2.c, 2.OA.C.4, 3.OA.A.1, MP1, MP6 Kids love to count things. This is a simple exercise, but a great way to get kids excited about arithmetic. Counting …

## Guess My Number

Topics: Greater than/less than, logic Materials: Whiteboard or paper and pencil Common Core: K.CC.C7, 1.NBT.B.3, MP1, MP3 Guess My Number is a quick, fun, and easy opening game to lead with a small group or the entire class. Students try to guess the number you’re thinking of in the fewest number of guesses possible. Why We Love Guess My Number …