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**Lesson: **30-second remainder game**Grade Level: **3-4-5**Skills: **division and remainders

**Materials:**Blank paper

Pens & Pencils

**Intro:**Discuss the length of a minute. Use a timer and have students put their heads on their desks and raise their hands when they think a minute is up.

Discuss whether they thought a minute was longer or shorter than they had expected.

**Procedure for game: (**This is a whole class activity)

- Tell students they are going to have 30 seconds to write
**consecutive**numbers (starting with 1) on a piece of paper in pen. This is not a race- they can choose to write as many or as few numbers as they want as long as its more than six.

- After the 30 seconds are up, they put pens down and one student rolls a 6-sided die. Whatever number comes up is the number the class has to divide their number list by (have them use pencils for this).

For example: If a student has written 1-14 on their sheet, and a six is rolled on the die:

14 ÷ 6 = 2 Remainder 2

- The student(s) with the smallest remainder (usually of one or zero) will get a point for that round. You can change the rules so that the largest remainder wins.

- Repeat as needed

**Questions for Discussion:**

Did anyone think of any strategies to get smaller remainders?

What were some strategies to divide your number list?

Did it matter how many or how few numbers you wrote?

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