Activity #1: A riddle to practice identifying rational and irrational numbers, including integers, fractions, decimals, and square roots.
Activity #2: A riddle to practice identifying rational and irrational numbers, focusing on decimals. Students need to look closely to see if digits repeat.
Activity #3: Identify rational and irrational square roots and estimate using a number line.
Activity #4: Students cut out and sort numbers into 2 piles: rational and irrational. This can be done alone or with a partner, and once they are cut out you can reuse them each year.